57 - 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

56 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 46

231q: if the birth weight of each of the babies born in a hospital in a day is found to be 2.8 kgs , then the standard deviation of the sample will be ?

a. 2.8
b. 0
c. 1
d. 0.28

answer b . 0 .

232q: a diagnostic test for a particular disease has a sensitivity of a 0.90 and a specificity of 0.80 . a single test is applied to each subject in the population in which the diseased population is 30 %. What is the probability that a person negative to this test , has no disease ?

answer 95 %

233q: according to WHO , blindness is defined as a visual acuity of the better eye , less than ?

a. 6/60
b. 5/60
c. 4/60
d. 3/60

answer d . 3/60 .

234q: the drug of choice for treating cholera in a pregnant women is ?

a. tetracycline
b. doxycycline
c. furazolidine
d. cotrimoxazole

answer c . furazolidine . for adults it is doxycycline and for children it is cotrimoxazole

235q: when an intervention is applied to community to evaluate its usefulness , it is termed as a trial for

a. efficacy
b. effectiveness
c. efficiency
d. effect modification

answer b . effectiveness .