I now have a solid base from the textbooks. Here is the complete, structured overview of history taking:
History Taking - Complete Structured Overview
A complete clinical history follows a standard sequence, moving from patient identification through to family background.
1. Patient Particulars (Biographical Data)
Always record these before eliciting complaints. Each item has diagnostic significance:
| Particular | Clinical Relevance |
|---|
| Name | Builds rapport; prevents mix-ups |
| Age | Congenital anomalies (birth/infancy), sarcomas (teens), appendicitis (14-25 y), carcinomas (>40 y), BPH/OA (elderly) |
| Sex | Thyroid disease, cystitis - commoner in females; GI/lung/renal cancers - commoner in males; haemophilia - males only |
| Religion | e.g. carcinoma of penis rare in Jews/Muslims (circumcision); intussusception risk after Ramadan fast |
| Social status | Appendicitis - higher social class; TB - lower social class/poor nutrition |
| Occupation | Varicose veins (bus conductors), bladder cancer (aniline dye workers), scrotal cancer (chimney sweepers), tennis elbow (tennis players) |
| Residence | Filariasis (endemic areas), gallbladder disease (geographical variation) |
| Full address | For correspondence and follow-up |
2. Chief Complaints (CC)
- Ask: "What are your complaints?" or "What brings you here?"
- Record all complaints in chronological order of appearance
- Note the duration of each complaint
- If multiple complaints start simultaneously, list in order of severity
- Confirm: "Were you perfectly well before this started?" - ensures no hidden earlier symptoms are missed
Example format:
- Swelling in neck - 1 year
- Evening fever - 10 months
- Pain in swelling - 6 months
- Sinus in neck - 1 month
3. History of Present Illness (HPI)
Covers from onset of first symptom to the time of examination. Three parts:
- Mode of onset - sudden vs. gradual; precipitating cause if any
- Ask: "How did the trouble start?"
- Progress / evolution of symptoms - chronological sequence
- Ask: "What happened next?"
- Treatment received - type of treatment, doctors seen, medications taken
Key principles:
- Record in the patient's own words, not medical jargon
- Let the patient narrate freely; redirect if they wander
- Avoid leading questions (e.g. don't ask "Does the pain go to the right scapula?" - patient will likely say yes to please you; instead ask "Where does the pain go?")
- Never ask "What are you suffering from?" - you'll get a diagnosis, not a history
For pain (SOCRATES mnemonic):
- Site
- Onset
- Character (dull, sharp, burning, colicky)
- Radiation
- Associating symptoms
- Timing (constant, intermittent)
- Exacerbating/relieving factors
- Severity (1-10 scale)
4. Past Medical History (PMH)
- Previous illnesses, hospitalisations, and surgical history
- Previous anaesthetic events (difficult airway, suxamethonium apnoea, intra-abdominal adhesions)
- Important negatives should be documented (e.g. "no diabetes, no hypertension")
Key conditions to screen:
- Diabetes mellitus
- Hypertension
- Cardiac disease (IHD, rheumatic fever)
- Tuberculosis
- Jaundice/hepatitis
- Epilepsy
- Asthma/COPD
- Renal disease
- Previous malignancy
5. Drug History & Allergies
- All current medications (prescription, OTC, herbal, supplements)
- Dosage and duration
- Allergies - document the drug AND the type of reaction (rash, anaphylaxis, GI intolerance)
- Recreational drug use and alcohol consumption (associated with adverse surgical outcomes)
6. Family History (FH)
Many diseases have a familial tendency. Always enquire about:
- Parents (alive? health? cause of death?)
- Siblings and children
- Specific conditions: haemophilia, TB, diabetes, hypertension, peptic ulcer, most cancers (especially breast cancer), fissure-in-ano, piles
7. Personal & Social History
- Smoking - type (cigarettes/cigar/pipe), frequency, pack-years
- Alcohol - quality and quantity
- Diet - regular/irregular, vegetarian/non-vegetarian, spicy food
- Marital status
- Mobility and ability to communicate (important for surgical planning, discharge, rehabilitation)
In women - menstrual history (MUST record):
- Regular/irregular cycle; duration; dysmenorrhoea
- Last menstrual period (LMP)
- Number of pregnancies (G), deliveries (P), miscarriages; normal vs. C-section
- White discharge (leucorrhoea)
8. History of Immunization (Paediatric)
Record vaccination status for:
- Diphtheria, Tetanus, Whooping cough (DTP)
- Poliomyelitis
- Smallpox, BCG (tuberculosis)
Quick Mnemonic: "PC HPDF-I"
| Letter | Component |
|---|
| P | Patient particulars |
| C | Chief complaints |
| H | History of present illness |
| P | Past medical/surgical history |
| D | Drug history & allergies |
| F | Family history |
| I | Immunization (paediatric) |
| + | Personal & social history |
Sources: S Das - A Manual on Clinical Surgery, 13th Ed. | Bailey and Love's Short Practice of Surgery, 28th Ed.