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Community Health Nursing - Short Summary of All Major Topics

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1. Introduction & Concept of Community Health Nursing

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2. Epidemiology

• Epidemiological triad - host, agent, environment
• Incidence vs. prevalence
• Types - descriptive, analytical, experimental epidemiology
• Disease surveillance - case finding, notification, reporting
• Measures of association - relative risk, odds ratio, attributable risk

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3. Biostatistics

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4. Health Promotion & Education

• Health education methods (individual, group, mass)
• Behavior change models (Health Belief Model, Stages of Change, Social Learning Theory)
• KAP (Knowledge, Attitude, Practice) surveys
• IEC (Information, Education, Communication) strategies
• Levels of prevention - primary, secondary, tertiary

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5. Primary Health Care (PHC)

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6. Family Health Nursing

• Family assessment (family health history, genogram, ecomap)
• Maternal and child health (antenatal, intranatal, postnatal care)
• Family planning and reproductive health
• Care of newborn, infant, and young child
• Adolescent health

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7. Maternal and Child Health (MCH)

• Antenatal care - risk assessment, nutrition, immunization (TT), iron-folate supplementation
• Safe delivery - skilled birth attendance, clean delivery practices
• Postnatal care - breastfeeding, newborn assessment, postpartum care
• Child health - growth monitoring, immunization, IMNCI (Integrated Management of Newborn and Childhood Illness), management of malnutrition

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8. Family Planning

• Temporary - condoms, OCP, IUD, DMPA injection
• Permanent - vasectomy, tubectomy
• Natural - rhythm method, LAM
• National Family Planning Programme in India (targets, incentives, service delivery)

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9. School Health Nursing

• School health services - screening, immunization, first aid
• School health education - hygiene, nutrition, safety
• Healthful school environment - sanitation, safe water, mid-day meal
• Management of common school health problems (refractive errors, dental caries, worm infestation, skin infections)

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10. Occupational Health Nursing

• Occupational hazards - physical, chemical, biological, ergonomic, psychosocial
• Occupational diseases - pneumoconiosis, lead poisoning, noise-induced deafness
• Pre-employment and periodic medical examinations
• First aid and emergency care at the workplace
• ILO and Factory Act provisions

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11. Geriatric / Old Age Health Nursing

• Cardiovascular disease, diabetes, arthritis, dementia, depression, falls
• Assessment - functional assessment, nutritional assessment, cognitive assessment (MMSE)
• Home-based care, day care centers, long-term care
• National Programme for Health Care of the Elderly (NPHCE)

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12. Mental Health Nursing in the Community

• Burden of mental illness (depression, schizophrenia, alcohol/drug abuse)
• Community mental health approach vs. institutional care
• District Mental Health Programme (DMHP)
• Rehabilitation of the mentally ill
• Suicide prevention, de-stigmatization

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13. Communicable Disease Control

• Chain of infection, modes of transmission
• Isolation and quarantine
• Vaccination and immunization (National Immunization Schedule)
• Surveillance and epidemic investigation
• Common diseases: TB, malaria, dengue, leprosy, HIV/AIDS, cholera, typhoid, polio, measles

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14. Non-Communicable Disease (NCD) Prevention

• Cardiovascular diseases, hypertension, diabetes, cancer, COPD
• Risk factor modification - tobacco, alcohol, diet, physical inactivity
• Screening programs (early detection of cancer, diabetes, hypertension)
• National Programme for Prevention and Control of Cancer, Diabetes, CVD, and Stroke (NPCDCS)

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15. Environmental Health

• Safe water supply - sources, purification, quality standards
• Sanitation and waste disposal - solid waste, biomedical waste
• Air pollution - indoor/outdoor, effects on health
• Food hygiene and safety
• Vector control - mosquitoes, rodents, flies
• Housing and health

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16. Nutrition and Community Health

• Assessment of nutritional status (anthropometry, clinical, dietary, biochemical)
• Protein-energy malnutrition (PEM) - marasmus, kwashiorkor
• Micronutrient deficiencies - iron deficiency anemia, iodine deficiency, Vitamin A deficiency
• National Nutrition Programmes - POSHAN Abhiyan, ICDS, Mid-Day Meal Scheme
• Food fortification and supplementation

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17. Disaster and Emergency Nursing

• Types of disasters - natural (floods, earthquakes) and man-made (chemical, nuclear)
• Disaster cycle - preparedness, mitigation, response, recovery
• Triage - START system
• Emergency response: first aid, mass casualty management
• Role of the nurse in disaster management teams

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18. Home Visiting / Home-Based Care

• Preparation, introduction, assessment, care plan
• Post-visit documentation and follow-up
• Priority setting (high-risk families)
• Bag technique - infection control during home visits

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19. Health Care Delivery System

• Levels of health care - primary, secondary, tertiary
• Sub-centre, PHC, CHC, District Hospital structure (India)
• National Health Mission (NHM), ASHA workers, ANM, MPW
• Universal Health Coverage (UHC) - goal and progress
• Health legislation - PCPNdT Act, MTP Act, PMSMA, etc.

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20. Research in Community Health Nursing

• Types of research - descriptive, correlational, experimental
• Community-based research methods
• Survey design and data collection tools (questionnaire, interview, observation)
• Ethical principles in research - informed consent, confidentiality, beneficence
• Evidence-based practice in community nursing

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21. Leadership, Management, and Supervision

• Management functions - planning, organizing, staffing, directing, controlling
• Supervision techniques and recording
• Community health nursing records and reports (family folder, daily register, monthly report)
• PHC management - sub-centre management, workload norms

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Quick Reference Summary Table

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📚 COMPLETE CHN NOTES - BSc NURSING 5TH SEM

Exam Date: 18 July | Source: Park's Preventive & Social Medicine + Standard CHN curriculum

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🗓️ 3-DAY STUDY PLAN

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UNIT 1 - CONCEPT OF HEALTH & DISEASE

1.1 Definition of Health

• WHO (1948): "Health is a state of complete physical, mental and social well-being, and not merely the absence of disease or infirmity."
• Positive health = Optimal functioning, not just absence of disease
• Dimensions of health: Physical, Mental, Social, Spiritual, Emotional, Vocational

1.2 Determinants of Health

1. Biological/Genetic factors
2. Behavioural/Lifestyle factors
3. Socioeconomic factors
4. Environmental factors
5. Health services availability
6. Nutrition

1.3 Levels of Prevention (Leavell & Clark)

1.4 Spectrum of Disease

• Subclinical → Mild → Moderate → Severe → Death
• Iceberg of disease - only tip (manifest cases) is visible; many are subclinical

1.5 Disease vs Illness vs Sickness

• Disease - physiological/psychological dysfunction
• Illness - subjective feeling of being unwell
• Sickness - state of social dysfunction

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UNIT 2 - EPIDEMIOLOGY

2.1 Definition

2.2 Epidemiological Triad

         HOST
        /    \
AGENT -------- ENVIRONMENT

• Host - age, sex, immunity, nutrition, habits
• Agent - biological, chemical, physical, nutrient, genetic
• Environment - physical, biological, social

2.3 Modes of Disease Transmission

• Direct - contact, droplet, transplacental
• Indirect - vehicle-borne (water, food), vector-borne (mosquito), airborne, fomite-borne

2.4 Natural History of Disease

1. Pre-pathogenesis period - before disease; stimulus + host interaction
2. Pathogenesis period - disease develops in host
3. Advanced disease
4. Outcome - recovery, disability, death

2.5 Key Epidemiological Measures

2.6 Epidemic Investigation Steps (7 Steps)

1. Confirm the diagnosis
2. Confirm the epidemic
3. Describe the epidemic (time, place, person)
4. Formulate hypothesis
5. Test hypothesis
6. Control measures
7. Prepare report

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UNIT 3 - PRIMARY HEALTH CARE (PHC)

3.1 Alma-Ata Declaration (1978)

• Joint WHO-UNICEF conference, USSR
• 134 countries attended
• Goal: "Health for All by 2000 AD"
• PHC = first level of contact between individual and health system

3.2 Eight Essential Elements of PHC (Mnemonic: EFAHISST)

1. Education about health problems
2. Food and nutrition
3. Adequate water supply and sanitation
4. Health of mother and child (MCH) including family planning
5. Immunization against major infectious diseases
6. Surveillance and control of locally endemic diseases
7. Supply of essential drugs
8. Treatment of common diseases and injuries

3.3 Principles of PHC

1. Equitable distribution - health services for all
2. Community participation - involving people in planning and implementation
3. Intersectoral coordination - health + agriculture + education + housing etc.
4. Appropriate technology - affordable, acceptable, locally maintainable
5. Focus on prevention and promotion

3.4 Health Care Delivery System in India

3.5 Community Health Workers

• ASHA - Accredited Social Health Activist (1 per 1000 population)
• ANM - Auxiliary Nurse Midwife (sub-centre level)
• AWW - Anganwadi Worker (ICDS scheme)
• MPW - Multi-Purpose Worker

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UNIT 4 - COMMUNITY HEALTH NURSING (CHN)

4.1 Definition

4.2 Philosophy of CHN

• Services are available to ALL - regardless of age, sex, religion
• Focus on FAMILY as a unit of service
• Based on prevention and health promotion
• Community participation is essential

4.3 Roles of a Community Health Nurse

1. Care giver - direct nursing care
2. Health educator - individual, family, community level
3. Counsellor - guidance and support
4. Advocate - speaks for patient's rights
5. Coordinator - coordinates with other health team members
6. Case manager - manages patient care
7. Researcher - identifies community health needs
8. Change agent - brings about behavioral and social change
9. Epidemiologist - disease surveillance, case finding

4.4 Home Visit

1. Planning and preparation
2. Introduction
3. Assessment of the family
4. Nursing care and health education
5. Recording and reporting
6. Follow-up

• Prevents cross-infection between nurse and family
• Bag should never be placed on the floor
• Wash hands before and after using bag
• Keep bag clean, dry, well-stocked

4.5 Family Health Assessment

• Genogram - family tree showing health history
• Ecomap - family's relationship with external community resources
• Family health history - hereditary diseases, illnesses
• APGAR Score for family** - Adaptation, Partnership, Growth, Affection, Resolve

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UNIT 5 - MATERNAL & CHILD HEALTH (MCH)

5.1 Antenatal Care (ANC)

• 1st visit: Before 12 weeks
• 2nd visit: 14-26 weeks
• 3rd visit: 28-34 weeks
• 4th visit: 36 weeks onwards

• Weight, BP, fundal height measurement
• TT immunization - 2 doses (TT1, TT2) or booster
• IFA tablets - 100mg elemental iron + 0.5mg folic acid, 100 tablets from 2nd trimester
• Calcium - 500mg twice daily from 2nd trimester
• Screening for anaemia (Hb < 11g/dL = anemia in pregnancy)
• Urine examination for protein/sugar
• Screening for high-risk pregnancy

• Age <18 or >35
• Parity > 5
• Hb < 8g/dL
• Height < 140cm
• Previous bad obstetric history (stillbirth, LSCS)

5.2 Normal Labour (3 Stages)

5.3 Postnatal Care

• Monitor involution of uterus
• Breast feeding support
• Lochia observation
• Perineal care
• Baby care - cord care, warmth, feeding
• Postnatal visit: Day 1, Day 3, Day 7, Day 42

5.4 Child Health & Growth Monitoring

• Road to Health Chart / Growth monitoring chart
• Monthly weight recording in ICDS
• Assess for malnutrition: Weight-for-age, Weight-for-height
• MUAC (Mid-Upper Arm Circumference): < 12.5 cm = severe malnutrition

5.5 National Immunization Schedule (India)

• ILR (Ice Lined Refrigerator) - stores vaccines at PHC level
• VVM (Vaccine Vial Monitor) - colour indicator on vaccine vials

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UNIT 6 - FAMILY PLANNING

6.1 Definition

6.2 Contraceptive Methods

• Tubectomy (Laparoscopic/Minilap) - female sterilization
• Vasectomy (NSV - No Scalpel Vasectomy) - male sterilization, simpler, safer

6.3 National Family Planning Programme

• Mission Parivar Vikas - focus on 146 high-fertility districts
• Target: TFR (Total Fertility Rate) of 2.1 by 2025
• IUCD 375 and IUCD 380A available free at government facilities
• Anjaneyulu incentive schemes for sterilization acceptance

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UNIT 7 - NUTRITION

7.1 Protein-Energy Malnutrition (PEM)

7.2 Micronutrient Deficiency Diseases

7.3 National Nutrition Programmes

• ICDS (Integrated Child Development Services) - 0-6 years children + pregnant/lactating women (supplementary nutrition, immunization, health checkup, referral services, health & nutrition education, pre-school education)
• POSHAN Abhiyan (National Nutrition Mission) - launched 2018, target to reduce stunting, wasting, low birth weight, anemia
• Mid-Day Meal Scheme - school children classes 1-8
• National Iron Plus Initiative - IFA supplementation across life stages
• Vitamin A Supplementation - 2 lakh IU every 6 months from 9 months to 5 years

7.4 Nutritional Assessment (ABCD)

• A - Anthropometric (weight, height, MUAC, skinfold thickness)
• B - Biochemical (Hb, serum albumin, serum ferritin)
• C - Clinical (signs of deficiency)
• D - Dietary (24-hour dietary recall, food frequency questionnaire)

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UNIT 8 - COMMUNICABLE DISEASE CONTROL

8.1 Tuberculosis (TB)

• Sputum AFB microscopy (gold standard)
• CB-NAAT (Cartridge Based Nucleic Acid Amplification Test) - detects MTB + rifampicin resistance
• Mantoux test (TST) - >10mm = positive in general population

• Goal: Eliminate TB by 2025 (India)
• DOTS (Directly Observed Treatment, Short Course)
• Nikshay Poshan Yojana - Rs. 500/month nutritional support
• Treatment regimens:
  • New cases: 2HRZE / 4HR (6 months)
  • H = Isoniazid, R = Rifampicin, Z = Pyrazinamide, E = Ethambutol

8.2 Malaria

• P. vivax: Chloroquine + Primaquine (14 days)
• P. falciparum: ACT (Artemisinin Combination Therapy) + Primaquine (single dose)

• IRS (Indoor Residual Spraying) with DDT/Malathion
• Long-Lasting Insecticidal Nets (LLIN)
• Larval control - Gambusia fish, Bacillus thuringiensis
• Personal protection - mosquito repellents, nets

8.3 HIV/AIDS

• First-line: TDF + 3TC + EFV (Tenofovir + Lamivudine + Efavirenz)

• ART to HIV+ pregnant mother
• Delivery by caesarean if viral load high
• Replacement feeding / EBF (if replacement not feasible)
• NVP (Nevirapine) syrup to newborn for 6 weeks

8.4 Dengue

• Dengue without warning signs
• Dengue with warning signs
• Severe Dengue (DSS - Dengue Shock Syndrome)

8.5 Leprosy

• Paucibacillary (PB) - 1-5 lesions, AFB negative
• Multibacillary (MB) - >5 lesions, AFB positive

• PB: Rifampicin + Dapsone × 6 months
• MB: Rifampicin + Dapsone + Clofazimine × 12 months

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UNIT 9 - ENVIRONMENTAL HEALTH

9.1 Safe Water Supply

• WHO standard: 0 coliform per 100 ml
• Permissible turbidity: < 5 NTU
• Chlorine residual: 0.5 mg/L after 30 min contact

1. Sedimentation (plain / coagulation with alum)
2. Filtration (rapid sand filter / slow sand filter)
3. Disinfection - Chlorination (most widely used)

• MPN (Most Probable Number) test - for coliforms
• Winkler's method - for dissolved oxygen
• Chloroscope - for residual chlorine

9.2 Sanitation

• Fly-proof latrine - sanitary latrine
• Septic tank - for sewage disposal
• Sullage - wastewater without human excreta
• WHO minimum standard for water: 20 litres/person/day

• Pit latrine (bored hole)
• VIP (Ventilated Improved Pit) latrine
• Pour-flush latrine
• Sanitary pour-flush latrine (most common in India)

9.3 Solid Waste Management

• Collection → Transportation → Disposal
• Methods: Sanitary landfill, incineration, composting, pyrolysis

9.4 Biomedical Waste Management (BMW Rules 2016)

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UNIT 10 - OCCUPATIONAL HEALTH

10.1 Definition

10.2 Occupational Hazards

10.3 Common Occupational Diseases

10.4 Role of Occupational Health Nurse

• Pre-employment and periodic medical examination
• First aid and emergency care
• Health education and safety promotion
• Environmental monitoring
• Rehabilitation of injured workers

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UNIT 11 - SCHOOL HEALTH

11.1 School Health Services

• Periodic health examination - at entry and annually
• Immunization - as per National Immunization Schedule
• Nutritional services - Mid-Day Meal
• First aid and emergency care
• Health records - cumulative health record card

11.2 Common School Health Problems

11.3 School Environment

• Adequate ventilation (1 sq ft per student)
• Proper lighting (15-20 foot candles)
• Safe drinking water
• Adequate toilets (separate for boys and girls)
• School garden - practical nutrition education

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UNIT 12 - NON-COMMUNICABLE DISEASES (NCDs)

12.1 Hypertension

• Definition: SBP ≥ 140 mmHg and/or DBP ≥ 90 mmHg (JNC 7)
• Risk factors: Obesity, salt intake, stress, family history, sedentary lifestyle
• Complications: Stroke, CAD, CKD, heart failure
• Treatment: Lifestyle modification + antihypertensives (ACE inhibitors, CCB, thiazide diuretics)

12.2 Diabetes Mellitus

• DM Type 1: Insulin-dependent, juvenile onset, autoimmune
• DM Type 2: Non-insulin dependent, adult onset, lifestyle related (most common - 95%)
• Diagnosis: FBS ≥ 126 mg/dL, PPBS ≥ 200 mg/dL, HbA1c ≥ 6.5%
• Gestational diabetes: FBS ≥ 92 mg/dL in pregnancy

12.3 Cancer Prevention

• Primary prevention: Avoid tobacco, alcohol, HPV vaccination, healthy diet
• Secondary prevention (Screening):
  • Cervical cancer - Pap smear, VIA (Visual Inspection with Acetic Acid)
  • Breast cancer - BSE (Breast Self Examination), mammography
  • Oral cancer - oral inspection

12.4 NPCDCS

• Opportunistic screening at PHC level for HTN, DM, cancers
• Community health education
• Referral to higher centers

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UNIT 13 - MENTAL HEALTH IN THE COMMUNITY

13.1 Key Concepts

• DMHP (District Mental Health Programme) - started 1996, Bellary Karnataka; now in all districts
• Goal: Provide basic mental health care at district level
• Activities: Training, outpatient services, half-way homes, rehabilitation

13.2 Common Mental Health Problems

• Depression, Anxiety disorders
• Schizophrenia
• Substance abuse (alcohol, drugs)
• Suicide

13.3 Suicide Prevention

• Risk assessment (SAD PERSONS scale)
• Mental health helplines (iCall - 9152987821)
• Community awareness and de-stigmatization
• Restricting access to means

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UNIT 14 - GERIATRIC/OLD AGE HEALTH

14.1 Old Age in India

• Elderly: ≥ 60 years (India), ≥ 65 years (global)
• India has ~14 crore elderly (2020) - rapidly growing
• NPHCE (National Programme for Health Care of the Elderly) - free drugs, rehabilitation, dedicated wards

14.2 Common Problems in Elderly

• 5 I's of Geriatrics: Immobility, Instability (falls), Incontinence, Intellectual impairment, Iatrogenesis
• Cardiovascular disease, DM, arthritis, COPD, dementia, depression
• Social isolation, abuse, neglect

14.3 Functional Assessment

• ADL (Activities of Daily Living) - Barthel Index
• IADL (Instrumental ADL) - Lawton Scale
• Cognitive assessment - MMSE (Mini Mental State Examination) - max 30 points; <24 = cognitive impairment

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UNIT 15 - RECORDS AND REPORTS IN CHN

15.1 Importance of Records

• Legal documents
• Continuity of care
• Research and planning
• Evaluation of services

15.2 Types of Records at Sub-Centre Level

1. Family folder - health records of each family (one folder per family)
2. MCH register - antenatal, postnatal, immunization records
3. Birth and death register
4. Immunization register
5. Family planning register
6. School health register

15.3 Reports

• Daily activity report - activities done each day
• Monthly report - summary submitted to PHC
• Annual report - yearly summary

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UNIT 16 - DISASTER NURSING

16.1 Disaster Cycle

16.2 Triage (START System)

16.3 Role of Community Health Nurse in Disaster

• Triage and first aid
• Evacuation and shelter management
• Coordination with disaster management teams
• Prevention of post-disaster infections
• Mental health support (psychological first aid)
• Surveillance for outbreak

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🔑 HIGH-YIELD EXAM FACTS (Most Likely to be Asked)

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📝 LIKELY EXAM QUESTIONS (Long Answer)

1. Define PHC. Discuss the 8 essential elements and principles of PHC. (10 marks)
2. Discuss the role of community health nurse in maternal and child health services. (10 marks)
3. Explain the national immunization schedule of India. (10 marks)
4. Describe DOTS strategy for TB control. Write about NTEP goals. (10 marks)
5. Discuss home visiting - definition, objectives, steps, and bag technique. (10 marks)
6. Explain the epidemiological triad. Discuss modes of disease transmission. (10 marks)
7. Write about levels of prevention with examples. (10 marks)
8. Discuss protein-energy malnutrition - types, features, and prevention. (10 marks)
9. Describe the health care delivery system in India. (10 marks)
10. Write about environmental sanitation - water purification, waste disposal. (10 marks)

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📝 LIKELY EXAM QUESTIONS (Short Answer / 5 marks each)

• Bag technique
• ASHA role and functions
• Cold chain maintenance
• Triage (START method)
• ORS composition and preparation
• ICDS scheme
• Malaria - vector and control
• HIV - modes of transmission and PMTCT
• Vital statistics - IMR, MMR, CBR, CDR
• Nutritional assessment (ABCD)
• National Deworming Day
• Functions of ANM at sub-centre
• Epidemic investigation steps
• VIA (Visual Inspection with Acetic Acid)

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📖 SCOPE OF COMMUNITY HEALTH NURSING

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Definition of Scope

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I. SCOPE BASED ON POPULATION SERVED

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II. SCOPE BASED ON PRACTICE SETTINGS

1. Home - Home visits, home-based care for sick, elderly, postnatal mothers
2. Sub-centre and PHC - Outpatient care, immunization, ANC clinics
3. Schools - School health programme, health education, screening
4. Workplace/Industries - Occupational health nursing, pre-employment exams
5. Community/Village level - Health education camps, door-to-door surveys
6. Slums and Rural areas - Urban/rural health programmes
7. Rehabilitation centres - Care of persons with disability
8. Disaster sites - Emergency and disaster nursing
9. Day care centres - Elderly and child day care

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III. SCOPE BASED ON LEVELS OF PREVENTION

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IV. SCOPE BASED ON AREAS OF PRACTICE

1. Maternal and Child Health (MCH)

• Antenatal, intranatal, postnatal care
• Family planning counselling and services
• Newborn and infant care
• Child growth monitoring
• School health
• Adolescent health (ARSH - Adolescent Reproductive and Sexual Health)

2. Communicable Disease Control

• Case detection, notification, and reporting
• Contact tracing and follow-up
• Immunization - planning and implementation of National Immunization Schedule
• Vector control education
• DOTS for TB, MDT for leprosy
• HIV/AIDS awareness and PMTCT

3. Non-Communicable Disease (NCD) Prevention

• Screening for hypertension, diabetes, cancer (NPCDCS)
• Lifestyle modification education
• Long-term follow-up and medication compliance
• Community NCD awareness programmes

4. Nutrition

• Nutritional assessment (ABCD method)
• Supplementary feeding programmes (ICDS, Mid-Day Meal)
• Vitamin A, Iron-Folic Acid supplementation
• Identification and referral of severely malnourished children

5. Environmental Health

• Safe water supply - education, chlorination
• Sanitation - promotion of latrine use (Swachh Bharat Mission)
• Solid and biomedical waste management
• Vector control - mosquito, fly, rodent control
• Food hygiene education

6. Mental Health

• Awareness and de-stigmatization
• Identification and referral under DMHP
• Rehabilitation of mentally ill patients
• Suicide prevention and counselling

7. Occupational Health

• Pre-employment and periodic health examination
• First aid at workplace
• Education about occupational hazards
• Prevention of occupational diseases

8. School Health

• Health screening and assessment
• Health education in schools
• Mid-Day Meal monitoring
• Deworming and iron supplementation

9. Geriatric Care

• Assessment using ADL, IADL scales
• Home-based care for elderly
• Rehabilitation
• NPHCE implementation

10. Disaster Nursing

• Triage, first aid, emergency care
• Coordination with disaster teams
• Post-disaster surveillance
• Psychological first aid

11. Health Education

• Group and individual health education
• Mass communication
• IEC (Information, Education, Communication)
• Behavior Change Communication (BCC)

12. Research and Surveys

• Community health surveys
• Needs assessment
• Epidemiological data collection
• Evidence-based practice

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V. SCOPE BASED ON ROLES OF CHN

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VI. SCOPE BASED ON HEALTH PROGRAMMES

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VII. SCOPE BASED ON FUNCTIONS

1. Health Promotion

• Health education, lifestyle modification, behaviour change
• Community empowerment
• Intersectoral coordination (health + education + agriculture)

2. Disease Prevention

• Immunization
• Chemoprophylaxis (IFA, Vitamin A, anti-malarials)
• Environmental sanitation
• Screening

3. Curative/Restorative Care

• Home-based treatment of minor ailments
• First aid
• Referral and follow-up

4. Rehabilitation

• Physical, mental, social, and vocational rehabilitation
• Disability limitation
• Reintegration of patient into society

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🔑 KEY POINTS FOR EXAM (Remember These)

"CHN is comprehensive, continuous, family-centred, community-oriented, and population-based."

1. Scope is not limited to any one age group, disease, or setting
2. Community is the CLIENT - not just an individual or family
3. CHN works at all 4 levels of prevention (primordial to tertiary)
4. CHN works in all settings - home, school, workplace, community, disaster site
5. CHN implements all major national health programmes
6. CHN works with multi-disciplinary teams - doctors, ASHA, AWW, ANM, MPW
7. CHN addresses biological, social, environmental, and behavioural determinants of health

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📝 How to Write This in Exam (10-Mark Answer Structure)

1. Introduction - Define CHN + one line on its broad scope (3-4 lines)
2. Scope based on Population - table or points (5-6 lines)
3. Scope based on Settings - list 6-8 settings (5-6 lines)
4. Scope based on Levels of Prevention - primordial to tertiary (4-5 lines)
5. Scope based on Areas of Practice - MCH, communicable diseases, NCDs, etc. (8-10 lines)
6. Scope based on Roles - brief list (4-5 lines)
7. Conclusion - 2-3 lines summarising the wide scope

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🚨 LAST MINUTE REVISION - COMMUNITY HEALTH NURSING

BSc Nursing University Exam | Exam at 10 AM Today

Strategy: Read each section once, highlight the BOLD points, and focus on definitions + numbered lists. These are what examiners look for.

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⚡ UNIT 1 - CONCEPT OF HEALTH

WHO Definition of Health (MUST WRITE IN EVERY EXAM)

"Health is a state of complete physical, mental and social well-being, and not merely the absence of disease or infirmity." - WHO, 1948

Dimensions of Health (6)

1. Physical
2. Mental
3. Social
4. Spiritual
5. Emotional
6. Vocational

Determinants of Health

1. Biological/Genetic factors
2. Lifestyle/Behavioural factors
3. Environment
4. Socioeconomic factors
5. Health services
6. Nutrition

Levels of Prevention (Leavell & Clark) - VERY HIGH YIELD

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⚡ UNIT 2 - COMMUNITY HEALTH NURSING (CHN)

Definition

CHN is the synthesis of nursing practice and public health practice applied to promoting and preserving the health of populations.

Philosophy of CHN

• Services for ALL - regardless of age, sex, religion, caste
• Family is the unit of service
• Focus on prevention and health promotion
• Community participation is essential

Scope of CHN

1. Population served - all age groups (womb to tomb)
2. Settings - home, school, workplace, PHC, community, disaster site
3. Levels of prevention - primordial to tertiary
4. Health programmes - NHM, RMNCH+A, NTEP, NACP, NPCDCS, ICDS, etc.
5. Areas - MCH, communicable diseases, NCDs, nutrition, environment, mental health, occupational health, school health, geriatrics, disaster

Roles of Community Health Nurse (9 Roles - EXAM FAVOURITE)

1. Care provider - direct nursing care
2. Health educator - teaching individuals, families, communities
3. Counsellor - guidance and emotional support
4. Case finder - identifying new disease cases
5. Coordinator - linking patient with services
6. Advocate - protecting patient rights
7. Supervisor - supervising ASHA, AWW, ANM
8. Researcher - community health surveys, evidence-based practice
9. Change agent - motivating behavior change

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⚡ UNIT 3 - PRIMARY HEALTH CARE (PHC)

Alma-Ata Declaration - KEY FACTS

• Year: 1978
• Place: Alma-Ata, USSR
• Organized by: WHO + UNICEF
• Countries: 134 countries attended
• Goal: "Health for All by 2000 AD"

8 Essential Elements of PHC

1. Education about prevailing health problems
2. Food supply and proper nutrition
3. Adequate safe water and basic sanitation
4. Health of mother and child including family planning
5. Immunization against major infectious diseases
6. Surveillance and control of locally endemic diseases
7. Supply of essential drugs
8. Treatment of common diseases and injuries

Principles of PHC (5)

1. Equitable distribution
2. Community participation
3. Intersectoral coordination
4. Appropriate technology
5. Focus on prevention and promotion

Health Care Delivery in India

Community Health Workers

• ASHA - 1 per 1000 population, village level
• ANM - Sub-centre level, trained nurse-midwife
• AWW (Anganwadi Worker) - ICDS scheme, 0-6 years
• MPW (Multi-Purpose Worker) - male, sub-centre

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⚡ UNIT 4 - EPIDEMIOLOGY

Definition

Study of distribution and determinants of health and disease in populations, and application of study to control health problems.

Epidemiological Triad

        HOST
       /    \
AGENT ------- ENVIRONMENT

• Host - age, sex, immunity, genetics, habits
• Agent - biological (bacteria, virus), chemical, physical, nutrient
• Environment - physical, biological, psychosocial

Modes of Transmission

• Direct - contact, droplet, transplacental (mother to baby)
• Indirect - water/food-borne, vector-borne, airborne, fomite-borne

Key Measures - NUMBERS TO REMEMBER

India Statistics (approximate)

• IMR: 28 per 1000 live births
• MMR: 97 per 1,00,000 live births
• India population: ~1.4 billion

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⚡ UNIT 5 - HOME VISIT & BAG TECHNIQUE

Home Visit

A professional visit made by a CHN to a family in its own home setting to assess, provide care, and educate.

Steps of Home Visit (6 Steps)

1. Preparation - review records, plan visit, prepare bag
2. Introduction - greet family, establish rapport
3. Assessment - assess family health needs
4. Care and education - provide nursing care + health education
5. Recording - document all findings and care given
6. Follow-up - plan next visit, make referrals if needed

Bag Technique - EXAM FAVOURITE

• Bag should NEVER be placed on the floor - use a newspaper/mackintosh
• Wash hands before and after handling bag
• Bag should be kept clean, dry, and well-stocked
• Start with hand washing ritual
• Use items from bag without contaminating rest of contents
• Dirty items go into a separate bag/waste

Priority in Home Visiting (ABCD)

• Acute illness cases
• Babies and pregnant women (high risk)
• Chronic disease follow-up
• Disability and rehabilitation cases

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⚡ UNIT 6 - MATERNAL & CHILD HEALTH (MCH)

Antenatal Care (ANC)

• 1st: Before 12 weeks
• 2nd: 14-26 weeks
• 3rd: 28-34 weeks
• 4th: 36 weeks onwards

• TT vaccination - 2 doses (TT1, TT2) or booster
• IFA tablets - 100 tablets, 100mg iron + 0.5mg folic acid
• BP monitoring
• Weight, fundal height, foetal heart sound
• Urine for albumin and sugar
• Hb estimation (normal in pregnancy > 11g/dL)
• Calcium supplementation

High Risk Pregnancy (Warning Signs)

• Age < 18 or > 35 years
• Parity > 5
• Height < 140 cm
• Hb < 8 g/dL
• Previous bad obstetric history

Stages of Labour

Postnatal Care

• Check involution of uterus (1 finger/day)
• Lochia - rubra (red, 1-4 days) → serosa (pink, 4-9 days) → alba (white, 10+ days)
• Breastfeeding support (initiate within 30 min)
• Perineal care
• Baby - cord care, warmth, BCG + OPV0 at birth

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⚡ UNIT 7 - IMMUNIZATION

National Immunization Schedule (KEY TABLE)

Cold Chain

• Temperature: 2-8°C (all vaccines except OPV)
• OPV: -15 to -25°C
• ILR (Ice Lined Refrigerator) - PHC level
• VVM (Vaccine Vial Monitor) - colour indicator
• Walk-in cooler - district/divisional level
• Immunization Carrier - field transport

Contraindications to Vaccination

• BCG - not in immunocompromised
• OPV - not in immunocompromised; use IPV instead
• Fever > 38.5°C - postpone (mild fever is NOT a contraindication)

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⚡ UNIT 8 - FAMILY PLANNING

Temporary Methods

Permanent Methods (Sterilization)

• Tubectomy - female, laparoscopic or mini-lap
• NSV (No Scalpel Vasectomy) - male, simpler and safer

Ideal Contraceptive (6 qualities)

1. 100% effective
2. Reversible
3. No side effects
4. Cheap and easily available
5. Acceptable to all religions/cultures
6. Easy to use

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⚡ UNIT 9 - NUTRITION

PEM (Protein Energy Malnutrition)

Micronutrient Deficiency Diseases

Nutritional Assessment - ABCD

• A - Anthropometric (weight, height, MUAC)
• B - Biochemical (Hb, albumin)
• C - Clinical (signs of deficiency)
• D - Dietary (24-hour recall, food frequency)

MUAC Cut-offs

• < 11.5 cm = Severe Acute Malnutrition (SAM)
• 11.5-12.5 cm = Moderate Acute Malnutrition (MAM)
• > 12.5 cm = Normal

National Nutrition Programmes

• ICDS - 0-6 years + pregnant/lactating women
• POSHAN Abhiyan - launched 2018, reduce stunting/wasting
• Mid-Day Meal - school children class 1-8
• National Iron Plus Initiative - IFA across all age groups
• Vitamin A Supplementation - 2 lakh IU every 6 months from age 9 months to 5 years

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⚡ UNIT 10 - COMMUNICABLE DISEASES

Tuberculosis (TB)

• Agent: Mycobacterium tuberculosis
• Transmission: Airborne droplets
• Diagnosis: Sputum AFB microscopy, CB-NAAT, Mantoux test
• Mantoux positive: >10 mm induration at 48-72 hours
• Treatment (new cases): 2HRZE / 4HR (6 months total)
  • H=Isoniazid, R=Rifampicin, Z=Pyrazinamide, E=Ethambutol
• DOTS - Directly Observed Treatment, Short Course
• NTEP Goal - Eliminate TB by 2025 in India
• Nikshay Poshan Yojana - Rs. 500/month nutritional support

Malaria

• Agent: Plasmodium vivax / P. falciparum
• Vector: Female Anopheles mosquito - bites at NIGHT
• Symptoms: Fever with chills and rigors, headache, splenomegaly
• Diagnosis: Peripheral smear, RDT
• Treatment:
  • P. vivax: Chloroquine + Primaquine (14 days)
  • P. falciparum: ACT (Artemisinin Combination Therapy)

HIV/AIDS

• Agent: HIV - RNA retrovirus
• Transmission: Sexual (most common), blood, mother-to-child
• Diagnosis: ELISA (screening) → Western Blot (confirmatory)
• CD4 < 200 = AIDS
• Treatment: ART - TDF + 3TC + EFV (1st line)
• PMTCT - ART to mother + NVP syrup to baby for 6 weeks

Dengue

• Vector: Aedes aegypti - bites in DAYTIME
• Symptoms: High fever, retro-orbital pain, myalgia, rash
• Warning signs: Abdominal pain, vomiting, bleeding, rapid breathing
• Treatment: Supportive - oral fluids, paracetamol only (avoid aspirin/NSAIDs)

Leprosy

• Agent: Mycobacterium leprae
• MDT (Multidrug Therapy):
  • PB (1-5 lesions): Rifampicin + Dapsone × 6 months
  • MB (>5 lesions): Rifampicin + Dapsone + Clofazimine × 12 months

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⚡ UNIT 11 - ENVIRONMENTAL HEALTH

Safe Water Supply

• WHO standard: 0 coliforms per 100 ml
• Residual chlorine: 0.5 mg/L after 30 min contact
• Steps: Sedimentation → Coagulation (Alum) → Filtration → Chlorination

Biomedical Waste (BMW Rules 2016)

ORS Composition (MUST KNOW)

• 3.5g NaCl (sodium chloride)
• 2.5g NaHCO3 (sodium bicarbonate)
• 1.5g KCl (potassium chloride)
• 20g Glucose
• Dissolved in 1 litre of clean water

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⚡ UNIT 12 - OCCUPATIONAL HEALTH

Occupational Diseases (High Yield Table)

Role of Occupational Health Nurse

1. Pre-employment & periodic examination
2. First aid and emergency care
3. Health education on workplace safety
4. Environmental monitoring
5. Rehabilitation of injured workers

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⚡ UNIT 13 - SCHOOL HEALTH

Components of School Health Programme (3 components)

1. School health services - examination, immunization, first aid, records
2. Health education - hygiene, nutrition, safety, sex education
3. Healthful school environment - safe water, sanitation, midday meal, clean campus

Common School Health Problems

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⚡ UNIT 14 - NON-COMMUNICABLE DISEASES (NCDs)

Hypertension

• Definition: SBP ≥ 140 mmHg AND/OR DBP ≥ 90 mmHg
• Risk factors: Obesity, excess salt, smoking, stress, family history
• Complications: Stroke, MI, CKD, heart failure

Diabetes Mellitus

• FBS ≥ 126 mg/dL = Diabetes
• HbA1c ≥ 6.5% = Diabetes
• Type 1 - juvenile, insulin-dependent, autoimmune
• Type 2 - adult, lifestyle-related, 95% of cases

Cancer Screening

• Cervical cancer - Pap smear, VIA (Visual Inspection with Acetic Acid)
• Breast cancer - BSE (Breast Self Examination), mammography
• Oral cancer - oral inspection

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⚡ UNIT 15 - MENTAL HEALTH

DMHP (District Mental Health Programme)

• Started: 1996, in Bellary, Karnataka
• Goal: Mental health care at district level
• Now covers all districts of India

Common Problems

• Depression, anxiety, schizophrenia, substance abuse, suicide

Suicide Prevention

• Identify risk factors
• Restrict access to means
• Helpline: iCall - 9152987821
• Community awareness and de-stigmatization

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⚡ UNIT 16 - GERIATRIC HEALTH

• Elderly: ≥ 60 years (India)
• 5 I's of Geriatrics: Immobility, Instability (falls), Incontinence, Intellectual impairment, Iatrogenesis
• NPHCE - National Programme for Health Care of the Elderly
• MMSE (Mini Mental State Examination) - max 30 points; < 24 = cognitive impairment
• Barthel Index - assesses ADL (Activities of Daily Living)

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⚡ UNIT 17 - DISASTER NURSING

Triage (START System) - MUST KNOW

Disaster Cycle

Role of CHN in Disaster

1. Triage and first aid
2. Evacuation and shelter coordination
3. Post-disaster disease surveillance
4. Psychological first aid
5. Coordination with teams

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⚡ UNIT 18 - RECORDS & REPORTS

Records at Sub-Centre Level

1. Family Folder (one per family)
2. MCH register
3. Immunization register
4. Birth and death register
5. Family planning register
6. School health register

Reports

• Daily activity report - everyday
• Monthly report - to PHC
• Annual report - yearly summary

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🔥 ABSOLUTE MUST-KNOW LIST (30 Minutes Before Exam)

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📝 MOST LIKELY LONG QUESTIONS (10 Marks Each)

1. Define PHC. Discuss the 8 essential elements and principles.
2. Discuss the role of CHN in MCH services.
3. Explain the national immunization schedule of India.
4. Discuss home visiting - definition, steps, and bag technique.
5. Define epidemiology. Explain the epidemiological triad and modes of disease transmission.
6. Write about levels of prevention with examples.
7. Discuss PEM - types, clinical features, and prevention.
8. Describe the health care delivery system in India.
9. Write about environmental health - water purification and waste disposal.
10. Discuss the scope of community health nursing.

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📝 MOST LIKELY SHORT QUESTIONS (5 Marks Each)

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💡 EXAM WRITING TIPS

1. Start every answer with a definition - examiners love it
2. Use tables wherever possible - they save time and look neat
3. Underline important keywords (WHO, Alma-Ata, 1978, etc.)
4. Numbering - always number your points (1, 2, 3...)
5. Draw a diagram if possible (epidemiological triad, health care pyramid)
6. Conclude every long answer with 2-3 lines
7. Leave 5 min at the end to recheck question numbers

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🌟 ALL THE BEST FOR YOUR EXAM! YOU CAN DO THIS! 🌟

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🏠 HOME VISIT - COMPLETE NOTES

BSc Nursing 5th Sem | Community Health Nursing

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DEFINITION

"A home visit is a professional call made by a community health nurse to a family or individual in their own home setting for the purpose of assessing health needs, providing nursing care and health education, and helping the family to make use of available health and social resources."

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PURPOSES / OBJECTIVES OF HOME VISIT

1. To assess the health status of the family and identify health needs
2. To provide nursing care to sick members at home
3. To provide health education on diet, hygiene, disease prevention
4. To give antenatal, postnatal and child care services
5. To motivate family for family planning, immunization, etc.
6. To detect early signs of disease and refer to health facility
7. To follow up on patients discharged from hospital
8. To strengthen the family's ability to solve their own health problems
9. To establish rapport and build trust with the family
10. To collect data for health records and planning

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TYPES OF HOME VISITS

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PRIORITY IN HOME VISITING

1. Acutely ill patients
2. Postnatal mothers and newborns (first 7 days are critical)
3. High-risk pregnant women
4. Infants and young children with illness
5. Patients with communicable diseases (TB, leprosy)
6. Chronic disease follow-up (DM, HTN)
7. Disabled persons for rehabilitation
8. Families with psychosocial problems

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STEPS / PROCEDURE OF HOME VISIT

STEP 1: PREPARATION (Before Leaving the Office)

• Review family folder and previous records
• Identify the purpose of the visit
• Plan the visit - what care/education to give
• Prepare and check the bag - ensure all supplies are stocked
• Carry relevant health education materials
• Note the address and route

STEP 2: INTRODUCTION (On Arrival)

• Greet the family warmly and politely
• Introduce yourself - name, designation, purpose of visit
• Establish rapport - make the family comfortable
• Take consent for care to be given

STEP 3: ASSESSMENT

• Observe the home environment - cleanliness, sanitation, water source, ventilation
• Assess health status of family members
• Ask about current health problems
• Identify high-risk members - pregnant women, infants, elderly
• Collect information for family health history

STEP 4: NURSING CARE AND HEALTH EDUCATION

• Provide the planned nursing care (dressings, injections, ANC, etc.)
• Demonstrate procedures clearly
• Give health education on specific topics (diet, hygiene, immunization, family planning)
• Motivate family for behaviour change
• Refer if needed (PHC, CHC, hospital)

STEP 5: RECORDING AND REPORTING

• Record all findings and care given in the family folder
• Document:
  • Date of visit
  • Family members seen
  • Problems identified
  • Care given
  • Advice given
  • Referrals made

STEP 6: FOLLOW-UP / TERMINATION OF VISIT

• Plan the next visit date and purpose
• Give the family a return appointment at health facility if needed
• Close the visit on a positive note
• Submit daily activity report on return to office

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BAG TECHNIQUE ⭐ (Most Important Part)

Definition

"Bag technique is a procedure used by the community health nurse to prevent cross-infection between the nurse and the family during a home visit."

Purpose

• Prevent cross-infection between nurse, family members, and the community
• Maintain asepsis during procedures
• Keep the bag clean, organized, and ready for use

Contents of the Nursing Bag

• Thermometer (oral + rectal)
• BP apparatus (sphygmomanometer + stethoscope)
• Weighing scale (baby)
• Measuring tape
• Torch/penlight
• Scissors, forceps

• Cotton wool, gauze pieces
• Bandages, adhesive plaster
• Syringes and needles
• Spirit, Savlon, Betadine
• ORS packets
• IFA tablets, Vitamin A capsules
• Gloves (sterile and clean)
• Waste bags (red and black)

• Family folder
• Registers
• Health education pamphlets

PROCEDURE OF BAG TECHNIQUE (Step-by-Step)

1. Spread a newspaper/mackintosh on a clean, dry surface (table, chair, window sill)
2. Place the bag on the newspaper - NEVER directly on the floor
3. Wash hands with soap and water (or use hand sanitizer)

KEY RULES OF BAG TECHNIQUE (Examiner Favourite)

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QUALITIES OF A GOOD HOME VISITOR

1. Tactful and diplomatic - deals with families sensitively
2. Observant - notices environmental and health hazards
3. Good communicator - clear in teaching and listening
4. Non-judgmental - accepts families as they are
5. Culturally sensitive - respects beliefs and practices
6. Organized - plans visits and keeps records properly
7. Knowledgeable - updated with health programmes and skills
8. Punctual - arrives at the promised time

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ADVANTAGES OF HOME VISIT

1. Family is seen in their natural environment
2. More comfortable setting for the family - less anxiety
3. Nurse can assess home conditions (sanitation, water, housing)
4. All family members can be assessed at once
5. Cultural and social factors can be identified
6. Helps build trust and rapport between nurse and family
7. Follow-up is more effective
8. Useful for non-ambulatory patients (bedridden, elderly, disabled)

DISADVANTAGES OF HOME VISIT

1. Time consuming - only one family at a time
2. Costly - travel expenses
3. Safety concerns for the nurse in some areas
4. May face resistance from family members
5. Incomplete information if key family member is absent

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RECORDING AFTER HOME VISIT

1. Family folder - main record, kept at sub-centre
2. MCH register - for pregnant/postnatal women, children
3. Daily activity diary/report - submitted to PHC in-charge
4. Disease register - if communicable disease detected

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POSTNATAL HOME VISIT SCHEDULE (Special Point)

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ANTENATAL HOME VISIT - KEY ACTIVITIES

• Check BP, weight, fundal height
• Give/check IFA tablets (100 tablets)
• Give TT immunization (TT1, TT2 or booster)
• Teach danger signs of pregnancy
• Motivate for institutional delivery
• Identify high-risk factors
• Provide birth preparedness counselling

DANGER SIGNS IN PREGNANCY (Teach During Visit)

• Severe headache
• Blurring of vision
• Excessive swelling of feet/face
• Reduced fetal movements
• Bleeding per vaginum
• Convulsions

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📝 HOW TO WRITE IN EXAM (10-mark answer)

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⚡ QUICK REVISION - ONE-LINERS

• Home visit = nurse goes to family in their home
• Bag = NEVER on the floor
• Bag technique = to prevent cross infection
• Postnatal visits = Day 1, 3, 7, 42
• Priority = acute illness > postnatal mother + newborn > high risk pregnancy
• Steps = Preparation → Introduction → Assessment → Care → Recording → Follow-up
• Record in = Family folder + MCH register + Daily diary

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🔬 EPIDEMIOLOGY - COMPLETE EXAM NOTES

BSc Nursing 5th Sem | Source: Park's Textbook of Preventive & Social Medicine

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DEFINITION ⭐ (Write this first in exam)

"Epidemiology is the study of the distribution and determinants of health and disease in human populations, and the application of this study to control health problems."

• MacMahon & Pugh

• John Last: "The study of distribution and determinants of health-related states or events in specified populations, and the application of this study to the control of health problems."
• Morris: "Epidemiology is a means of learning, or asking questions and getting answers that lead to further questions."

Key words to remember: Distribution + Determinants + Population + Application

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AIMS OF EPIDEMIOLOGY

1. To describe the distribution and magnitude of health and disease problems in human populations
2. To identify aetiological (causal) factors (risk factors) in the pathogenesis of disease
3. To provide data essential for planning, implementation and evaluation of health services

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USES OF EPIDEMIOLOGY

1. Study historical rise and fall of disease - identify trends, emerging health problems
2. Community diagnosis - identify and quantify health problems in a community (mortality + morbidity rates) → "Epidemiology is the diagnostic tool of community medicine"
3. Planning and evaluation - rational allocation of resources based on data
4. Evaluation of health services - assess impact of interventions
5. Study of individual risks and chances - risk assessment
6. Completing the natural history of disease - understand how disease progresses
7. Identify new syndromes - describe new disease patterns (e.g., AIDS was first identified epidemiologically)

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EPIDEMIOLOGICAL TRIAD ⭐ (Most Important - Draw in Exam)

            AGENT
           /     \
          /       \
        HOST ---- ENVIRONMENT

"The mere presence of these three factors is NOT sufficient - their interaction is what causes disease."

• Park's Textbook

A - AGENT

• Infectivity - ability to enter and infect a host
• Pathogenicity - ability to produce disease
• Virulence - severity of disease produced
• Antigenicity - ability to stimulate antibodies
• Invasiveness - ability to spread inside the host

B - HOST

• Age - TB common in young adults; CHD in elderly
• Sex - some diseases more in males (gout), some in females (thyroid disease)
• Genetic factors - sickle cell anaemia, haemophilia
• Nutritional status - malnourished are more susceptible
• Immunity - natural or acquired
• Occupation - silicosis in miners, byssinosis in cotton workers
• Habits/lifestyle - smoking, alcohol, diet
• Marital status - some cancers related

C - ENVIRONMENT

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NATURAL HISTORY OF DISEASE ⭐

"Disease results from a complex interaction between man (host), agent, and environment."

TWO PHASES:

Phase 1 - PRE-PATHOGENESIS PERIOD

• Disease agent has NOT yet entered the host
• Host, agent, and environment exist separately
• Person is at risk but not yet diseased
• Called "man in the midst of disease"
• Prevention here = Primary prevention (immunization, health education)

Phase 2 - PATHOGENESIS PERIOD

• Disease agent enters the susceptible host
• Disease process begins inside the body

Incubation period = time between entry of agent and appearance of first symptoms

Examples of Incubation Periods:

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SPECTRUM OF DISEASE

Subclinical → Mild → Moderate → Severe → Fatal
(Inapparent)                             (Death)

ICEBERG OF DISEASE ⭐

         /\
        /  \    ← VISIBLE (Clinical/manifest cases)
       /    \
      /------\
     /        \   ← BELOW WATERLINE (Subclinical/
    /          \    inapparent cases - not seen)
   /____________\

• Above water = Manifest (visible, diagnosed) cases
• Below water = Subclinical cases (much larger in number - not diagnosed)
• Epidemiologists must uncover the submerged portion
• Example: For every 1 case of clinical polio, there are 100s of subclinical infections

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TYPES OF EPIDEMIOLOGY

1. DESCRIPTIVE EPIDEMIOLOGY

• What, Who, Where, When
• Describes distribution of disease by Person, Place, Time
• First step in epidemiological investigation
• Generates hypotheses

• Secular trend - over years/decades (e.g., CHD increasing)
• Cyclic trend - periodic rise and fall (e.g., measles every 2 years)
• Seasonal variation - certain seasons (e.g., malaria in monsoon, cholera in summer)
• Epidemic - sudden sharp rise in disease

2. ANALYTICAL EPIDEMIOLOGY

• Why and How - identifies causes and risk factors
• Tests hypotheses generated by descriptive studies
• Two main types:
  • Case-control study - compare cases (with disease) to controls (without disease) → looks BACKWARD (retrospective)
  • Cohort study - follow exposed and unexposed people forward in time → looks FORWARD (prospective)

3. EXPERIMENTAL EPIDEMIOLOGY

• Tests preventive or therapeutic measures
• Types:
  • Randomized Controlled Trial (RCT) - gold standard
  • Field trial - conducted in community
  • Community trial - whole community as unit

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BASIC MEASUREMENTS IN EPIDEMIOLOGY ⭐

RATE, RATIO, PROPORTION

MORBIDITY RATES

Incidence = new cases only (measures RISK) Prevalence = all existing cases (measures BURDEN)

MORTALITY RATES

NATALITY RATES

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EPIDEMIC INVESTIGATION - 7 STEPS ⭐

1. Confirm the diagnosis - laboratory, clinical criteria
2. Confirm the epidemic - compare with expected baseline
3. Define and count cases - case definition, case finding
4. Describe the epidemic - by Person, Place, Time (draw epidemic curve)
5. Formulate hypothesis - what is the source? Mode of spread?
6. Test the hypothesis - analytical studies (case-control)
7. Control measures + Report - implement control, write report

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TYPES OF EPIDEMICS

Common Source Epidemic

• All cases exposed to same source at same time
• Point source - exposure at one time (e.g., food poisoning party)
• Sharp rise and rapid fall of cases
• Epidemic curve is bell-shaped, sharp peak

Propagated (Progressive) Epidemic

• Disease spreads from person to person
• Cases occur over a longer period
• Epidemic curve is gradual rise, multiple peaks
• Example: Measles, influenza outbreak

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SCREENING IN EPIDEMIOLOGY

• Sensitivity - ability to correctly identify TRUE POSITIVES (diseased)
• Specificity - ability to correctly identify TRUE NEGATIVES (non-diseased)
• Simple, cheap, acceptable, valid

High sensitivity = few false negatives (misses fewer cases) - good for cancer screening High specificity = few false positives - good for confirmatory tests

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LEVELS OF PREVENTION (Leavell & Clark) - With Epidemiology Link

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KEY CONCEPTS - QUICK DEFINITIONS

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EPIDEMIOLOGY vs CLINICAL MEDICINE

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⚡ QUICK REVISION - ONE LINERS

• Epidemiology = Distribution + Determinants + Population + Application
• Epidemiological triad = Agent + Host + Environment
• Iceberg = Manifest cases visible, subclinical cases hidden below waterline
• Pre-pathogenesis = no disease yet → Primary prevention applies
• Pathogenesis = disease process begins → Secondary prevention applies
• Incidence = NEW cases; Prevalence = ALL cases
• IMR India = 28 per 1000; MMR India = 97 per 1,00,000
• 7 Steps of epidemic investigation = Confirm diagnosis → Confirm epidemic → Define cases → Describe → Hypothesize → Test → Control
• Common source epidemic = sharp peak; Propagated epidemic = multiple peaks
• Sensitivity = detect true positives; Specificity = detect true negatives
• Carrier = no symptoms but can spread disease
• Herd immunity = community protection through vaccination

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📝 HOW TO WRITE IN EXAM

1. Definition (2-3 lines)
2. Aims (3 points)
3. Uses (5-7 points with brief explanation)
4. Epidemiological triad (draw the triangle + explain each corner)
5. Natural history of disease (2 phases with diagram)
6. Types of epidemiology (3 types briefly)
7. Conclusion (2 lines)

1. Define triad (2 lines)
2. Draw the triangle
3. Explain Agent (types), Host (factors), Environment (types)
4. State how their interaction causes disease

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🇮🇳 NATIONAL HEALTH PROGRAMMES IN INDIA

Complete Exam Notes | BSc Nursing 5th Sem

Source: Park's Textbook of Preventive & Social Medicine

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INTRODUCTION

National Health Programmes are organized, planned efforts by the Government of India to control, prevent, and eliminate specific health problems affecting the population. They are implemented through the existing health infrastructure (Sub-centre → PHC → CHC → District Hospital).

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🏥 A. NATIONAL HEALTH MISSION (NHM)

NHM - Key Facts

Objectives of NHM

1. Reduce IMR and MMR
2. Universal access to equitable, affordable, quality health care
3. Prevent and control communicable and non-communicable diseases
4. Increase community participation in health
5. Strengthen the health delivery system at all levels

Key Features / Interventions under NHM

1. ASHA - 1 per 1000 population (community level link worker)
2. Janani Suraksha Yojana (JSY) - cash incentive for institutional delivery
3. JSSK - free delivery, drugs, diagnostics, transport, diet at govt. hospitals
4. Mobile health units - for hard-to-reach areas
5. 24×7 PHC services - round the clock basic obstetric care
6. Village Health Nutrition Days (VHND) - monthly outreach
7. SNCUs (Special Newborn Care Units) at CHC/District level
8. Name-based tracking of pregnant women (Mother-Child Tracking System - MCTS)
9. Rogi Kalyan Samiti - Hospital Management Committee
10. IPHS - Indian Public Health Standards for facilities

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👶 B. REPRODUCTIVE, MATERNAL, NEWBORN, CHILD & ADOLESCENT HEALTH (RMNCH+A)

Key Facts

Components of RMNCH+A

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🤰 C. JANANI SURAKSHA YOJANA (JSY) ⭐

Key Facts

Cash Benefits (JSY)

JSSK (Janani-Shishu Suraksha Karyakram)

• Entitles ALL pregnant women delivering in govt. hospitals to:
  • Free delivery (including caesarean section)
  • Free drugs, diagnostics, blood, diet
  • Free transport - home to hospital, between facilities, back home
  • Same entitlements for sick newborns too

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💉 D. UNIVERSAL IMMUNIZATION PROGRAMME (UIP)

Key Facts

National Immunization Schedule (Summary)

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🦠 E. NATIONAL TB ELIMINATION PROGRAMME (NTEP)

Key Facts

Treatment Regimens (NTEP)

DOTS Strategy

• Directly Observed Treatment - patient takes medicine in front of a health worker
• Prevents drug resistance
• Involves ASHA, ANM as DOT providers

Nikshay Poshan Yojana

• Rs. 500 per month nutritional support to TB patients during treatment
• Paid directly to patient's bank account

Classification of TB

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🦟 F. NATIONAL VECTOR BORNE DISEASE CONTROL PROGRAMME (NVBDCP)

Malaria

Dengue

Filariasis (Lymphatic Filariasis)

Kala-Azar (Visceral Leishmaniasis)

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🧬 G. NATIONAL AIDS CONTROL PROGRAMME (NACP)

Key Strategies under NACP

1. Prevention - condom promotion, IEC, harm reduction
2. Testing - ICTC (Integrated Counselling and Testing Centre) - free, voluntary
3. Treatment - ART (Antiretroviral Therapy) - free at ART centres
4. PMTCT - Prevention of Mother to Child Transmission
5. Blood safety - safe blood transfusion
6. Targeted interventions - for high-risk groups (truck drivers, sex workers, IDU)

ART (1st line regimen)

• TDF + 3TC + EFV (Tenofovir + Lamivudine + Efavirenz)
• Given free at ART centres attached to district hospitals
• Start ART when CD4 < 350 (or for all, regardless of CD4 in current guidelines)

PMTCT

• ART to all HIV+ pregnant women
• Nevirapine (NVP) syrup to newborn for 6 weeks
• Advise replacement feeding or exclusive breastfeeding

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🧑‍⚕️ H. NATIONAL LEPROSY ERADICATION PROGRAMME (NLEP)

MDT (Multi-Drug Therapy)

Grade 2 Disability

• Visible deformity - clawing of hands/feet, foot drop, lagophthalmos (eye)
• Disability prevention is a key component of NLEP

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🌿 I. INTEGRATED CHILD DEVELOPMENT SERVICES (ICDS)

6 Services of ICDS (SHIN + Pre-school)

1. Supplementary nutrition
2. Health check-up
3. Immunization
4. Nutrition and health education
5. Referral services
6. Pre-school non-formal education

"ICDS provides 6 services through the Anganwadi Centre"

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💊 J. NATIONAL PROGRAMME FOR PREVENTION & CONTROL OF CANCER, DIABETES, CVD & STROKE (NPCDCS)

Objectives

1. Prevent and control NCDs through lifestyle changes
2. Opportunistic screening of persons above 30 years at PHC level
3. Early diagnosis and management
4. Build capacity at all levels
5. Establish NCD Clinics at CHC and District level

Screening Activities

• Hypertension - BP measurement at every visit
• Diabetes - blood glucose at PHC
• Cancer cervix - VIA (Visual Inspection with Acetic Acid)
• Cancer breast - clinical breast examination, CBE
• Cancer oral - oral inspection

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🧠 K. DISTRICT MENTAL HEALTH PROGRAMME (DMHP)

Objectives

1. Provide basic mental health care at district level
2. Train health staff in mental health
3. Reduce stigma of mental illness
4. Suicide prevention
5. Rehabilitation of mentally ill

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👴 L. NATIONAL PROGRAMME FOR HEALTH CARE OF ELDERLY (NPHCE)

Services

• Dedicated geriatric wards at district hospitals
• Free drugs for elderly
• Physiotherapy and rehabilitation
• Home-based care for bedridden elderly
• Training of health personnel for geriatric care

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👁️ M. NATIONAL PROGRAMME FOR CONTROL OF BLINDNESS (NPCB)

Activities

1. Cataract surgery (free) - IOL (Intraocular Lens) implantation
2. School eye screening
3. Vitamin A supplementation (prevents night blindness)
4. Refractive error correction - free spectacles
5. Corneal transplantation

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🧂 N. NATIONAL IODINE DEFICIENCY DISORDERS CONTROL PROGRAMME (NIDDCP)

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🪱 O. NATIONAL DEWORMING PROGRAMME

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🍎 P. NATIONAL NUTRITION PROGRAMMES

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🚽 Q. SWACHH BHARAT MISSION (SBM)

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💧 R. JAL JEEVAN MISSION

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🏥 S. AYUSHMAN BHARAT PROGRAMME

Two Components:

1. Health and Wellness Centres (HWC)

• Transform Sub-centres and PHCs into Health and Wellness Centres
• Provide comprehensive primary health care
• NCD screening, mental health, palliative care
• 1.5 lakh HWCs targeted across India

2. PM-JAY (Pradhan Mantri Jan Arogya Yojana)

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📊 QUICK REFERENCE TABLE - ALL PROGRAMMES

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⚡ MUST REMEMBER - EXAM ONE-LINERS

• NHM = NRHM (2005) + NUHM (urban) → merged as NHM 2013
• JSY launched = 12 April 2005, incentive for institutional delivery
• India polio-free = 2014
• India leprosy eliminated = 2005 (< 1/10,000)
• NTEP goal = Eliminate TB by 2025
• DOTS = take medicine in front of health worker
• ICDS = 6 services, launched 1975, target 0-6 years
• DMHP = started 1996, Bellary Karnataka
• Dengue = Aedes (day) | Malaria = Anopheles (night) | Filaria = Culex
• Kala-azar vector = Sandfly
• NPCDCS = opportunistic screening above 30 years
• PM-JAY = Rs. 5 lakh per family per year
• Swachh Bharat = launched 2 October 2014
• National Deworming Day = Feb 10 + Aug 10
• NPCB = main cause of blindness = Cataract (80%)
• Nikshay Poshan Yojana = Rs. 500/month for TB patients
• JSSK = free delivery, drugs, transport, diet
• ASHA ratio = 1 per 1000 population

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📝 HOW TO WRITE IN EXAM

1. Introduction - what are NHPs and why (3 lines)
2. List programmes in a table (brief)
3. Describe 3-4 major programmes in detail:
   • Name, year launched, objective, key features, target group
4. Conclusion - role of CHN in implementing these programmes

• Full form, year, objective, key services/benefits, target group

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