154 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 47

236q: the most common cause of blindness in India is ?

 answer  cataract .

237q: under national programme for prevention of nutritional blindness , a child in the age group of 6-11 months is given a mega dose of vitamin A equal to ?

a. 50000 IU
b. 1 lakh IU
c. 1.5 lakh IU
d. 2 lakh IU

 answer  b . 1 lakh IU .

238q: the usual incubation period of pertussis is ?

 answer 7-14 days .

239q: risk of damage of fetus by maternal rubella is maximum if mother gets infected in ?

a. 6-12 weeks of pregnancy
b. 20-24 weeks of pregnancy
c. 21-25 weeks of pregnancy
d. 32 – 36 weeks of pregnancy

 answer  a . 6-12 weeks of pregnancy .

240q: deficienct in weight for height in a 3 year old child indicates

a. acute malnutrition
b. chronic malnutrition
c. concomitant acute and chronic
d. underweight

 answer  a. acute malnutrition .

241q: several studies show that 85 % of cases of lung cancer are due to cigarette smoking . it is a measure of ?

a. incidence rate
b. relative risk
c. attributable risk
d. absolute risk

 answer  c . attributable risk