Here are all 5 MCQ answers with full explanations:
MCQ Answers with Explanations
i. Health of travellers is related to the term:
✅ Answer: b. Emporiatrics
Explanation: "Emporiatrics" is the term specifically coined to describe the science of health of travellers. It comes from the Greek word "emporos" (traveller/merchant). Travellers face special health risks including exposure to unfamiliar pathogens, disrupted eating habits, climate changes, and separation from familiar medical care.
- Ergonomics = science of work environment design
- Eugenics = improving genetic quality of populations
- Euthenics = improving environment to improve human wellbeing
(Park's Textbook of Preventive and Social Medicine, p. 3715)
ii. Life cycle of filarial in the mosquito is described as:
✅ Answer: b. Cyclodevelopmental
Explanation: The classification of parasite development in the vector is:
| Type | Definition | Example |
|---|
| Propagative | Parasite only multiplies (no development) | Plague bacillus in rat flea |
| Cyclopropagative | Parasite both multiplies AND develops | Malaria in Anopheles mosquito |
| Cyclodevelopmental | Parasite develops (changes form) but does NOT multiply | Filaria (W. bancrofti) in Culex mosquito |
Filarial microfilariae enter the mosquito, develop through larval stages (L1 to L3 infective larva), but do not multiply in numbers - hence cyclodevelopmental.
iii. A woman on combined OCPs forgot to take them on two successive doses. Next line of management is:
✅ Answer: d. Take 2 pills each for the rest of the cycle
Explanation: As per standard guidelines for 2 missed combined OCP pills:
- Take the most recent missed pill as soon as possible
- Continue remaining pills at usual time (may mean 2 pills on same day)
- Use barrier contraception for 7 days
- If missed in Week 3 - omit hormone-free interval and start new pack immediately
Option (d) best reflects the WHO/standard guidance of catching up (2 pills on the day of remembering, then continuing the pack). Options (a), (b), and (c) are incorrect - you do not simply continue the next pill, nor do you take 3 pills, nor do you permanently shift to barrier methods.
(Goldman-Cecil Medicine)
iv. The common cancers screened under NP-NCD are:
✅ Answer: a. Breast, cervical, and oral cancers
Explanation: Under India's National Programme for Non-Communicable Diseases (NP-NCD), the three cancers targeted for population-based screening are:
- Breast cancer - clinical breast examination (CBE)
- Cervical cancer - visual inspection with acetic acid (VIA)
- Oral cancer - visual oral examination
These three were chosen because they are common, have identifiable pre-malignant stages, and can be screened by trained health workers at the primary care level. The other options (lung, prostate, thyroid, colon, stomach, kidney) are not part of the NP-NCD screening framework.
v. Monetary benefits of any programme are compared with the costs incurred in:
✅ Answer: b. Cost Benefit Analysis
Explanation: Per Park's Textbook:
"The economic benefits of any programme are compared with the cost of that programme. The benefits are expressed in monetary terms to determine whether a given programme is economically sound." - Park's PSM
Key distinctions:
| Type | Benefits expressed as |
|---|
| Cost Benefit Analysis | Monetary (rupees/dollars) |
| Cost Effective Analysis | Results (lives saved, disease-free days) |
| Cost Utility Analysis | QALYs (Quality-Adjusted Life Years) |
| Cost Accounting | Tracks cost structure only |
Since the question specifically says "monetary benefits compared with costs", the answer is Cost Benefit Analysis.
(Park's Textbook of Preventive and Social Medicine, p. 2867)