Preventive and Social Medicine Made Easy

Psm

1. 1
100 PYQS

2. a. Life expectancy
Bed turn-over ratio
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
1.Which of the following is a Mortality Indicator?
b. Notification rate
c. Sullivans index
d. Bed turn over ratio
PYQS : #1

3. ANSWER : A
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
•Life expectancy -Mortality indicator
•Notification rate -Morbidity indicator
•Sullivans index -Disability indicator
•Bed turn over ratio -Health care utilization indicator
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

4. a. Mid year population during that year
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
2. Denominator for calculating proportional mortality rate from
a specific disease is :
b. Population at risk in that particular area
c.Total deaths due to all causes
d. Cases of a particular disease
PYQS : #2

5. ANSWER : C
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
❑PROPORTIONAL MORTALITY RATE
Deaths due to a disease
Total deaths due to all causes
•Mortality indicator to indicate burdenof disease Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

6. a. Specific death rate
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
3. Which of the following is used as an yardstick for
assessment of standards of therapy :
b. Case fatality rate
c.Proportional mortality rate
d. Survival rate
PYQS : #3

7. ANSWER : D
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
❑5 year survival rate
✓To express prognosisof disease
✓Yardstick for assessment of standards of therapy
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

8. a. Odds ratio
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
4. Which of the following is used to compare mortality rates
between coal miners vs General population:
b. Case fatality ratio
c.Proportional mortality rate
d. Standardisedmortality ratio
PYQS : #4

9. ANSWER : D
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
❑Standardisedmortality ratio : SMR
▪To compare mortality rates between occupation
vs General population
▪SMR = Observed deaths / expected deaths
▪> 1 : Occupation is having more risk of death
▪Note : Expected deaths –Calculated from
indirect standardisation
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

10. a. Measure of risk of developing disease
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
5. True about prevalence of disease :
b. Ideal measure for studying disease etiology
c.Decreases with increase in duration of disease
d. Decreases with increase in case fatality
PYQS : #5

11. ANSWER : D
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
•Measure of risk of developing disease : Incidence
•Ideal measure for studying disease etiology: Incidence
•Prevalence : Decreases with decrease in duration of
disease
•Prevalence : Decreases with increase in case fatality
(Prevalence = Incidence x Duration of disease)
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

12. a. Incidence will change
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
6. A new drug which reduces mortality of stage III cancer patients
prolonging survival but does not cure a disease was introduced. Which of the
following is true for the impact of this drug : :
b. Prevalencewill not change
c.Incidence will not change but prevalence increases
d. Incidence will not change but prevalence decreases
PYQS : #6

13. ANSWER : C
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
❑A new drug which reduces mortality of cancer
patients prolonging survival but does not cure a
disease :
✓Increase duration of disease : Increase prevalence
✓Not preventing new cases : No change in incidence
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

14. a. Mean years of Schooling
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
7. Human Development Index( HDI) does Not include :
b. Life expectancy
c. GNI per capita
d. Adult literacy rate
PYQS : #7

15. ANSWER : D
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
Human development index
Dimensions Indicators
❑Knowledge Mean yrsof schooling
Expected yrsof schooling
❑Income Per capita GNI
❑Longevity LE at birth
✓To compare standard of living between countries
✓Recent update: India -0.633 (Rank 132)
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

16. a. Case fatality rate
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
8. HTN can lead to both mortality and morbidity in a group of
population. Indicator used to measure burden of disease considering
both : :
b. Age adjusted rates
c.Disability adjusted life years
d. Attributable risk proportion
PYQS : #8

17. ANSWER : C
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
❑Disability adjusted life years (DALYs)
✓To express burdenof disease
✓Considers both mortality and morbidity of disease
❑DALYs = YLL + YLD
▪YLL –Yrsof life lost
▪YLD –Yrslived with disability
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

18. a. DALYs
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
9. A new intervention for cervical cancer prolong life by 10 years with
utility value of 0.6 . Indicator to express effectiveness of intervention
considering both quantity and quality of life : :
b. QALYs
c.HALE
d. YPLL
PYQS : #9

19. ANSWER : B
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
❑Quality adjusted life years (QALYs)
✓To express effectiveness of intervention
✓Considers both quantity and quality of life
✓Quality of life : Expressed by Utility value
✓1 QALY = 1 year of life lived in perfect health
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

20. a. Screening is of no use in changing course of disease
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
10 . Which of the following is not true regarding pathogenesis of a
disease:
:
b. Tertiary prevention is possible
c.Entry of organism occurs
d. Includes subclinical cases also
PYQS : #10

21. ANSWER : A
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
Pathogenesis of a disease:
✓Starts with entry of organism
✓Subclinical illness –-Clinical illness–Complications
✓Both secondary and tertiary level of preventioncan be
done
-So Screening is of use in changing course of disease
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

22. Title Two
Marketers must link the price
to the real and perceived
value of the product
Title Three
Title Four
11. Which of the following is not a method of direct transmission of infection
:
b. Sexual intercourse
c.Syringe and needle
d. Droplet nuclei
PYQS : #11
a. Droplet infection

23. ANSWER : D
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
Direct transmission Indirect transmission
1.Direct contact: Contact, Sexual
Intercourse
1. Vehicle borne : Food , water
2. Droplet infection
The droplet spread is limited to a
distance of 30-60 cm between source
and host
2. Air borne :
-Droplet nuclei : 1-10 microns
dried residues of droplets
-Dust
3. Contact with soil 3. Vectorborne
4. Inoculationinto skin/mucosa: Needle,
Dog bite
4. Fomite borne
5. Transplacental (Vertical) 5. Unclean hands
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

24. a. Tetanus , measles
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
12. Man is dead end host for:
b. Measles , Yellow fever
c.Tetanus , Yellow fever
d. Tetanus , JE
PYQS : #12

25. ANSWER : D
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
❑Dead end infection :
✓No man-man transmission
✓If there is no portal of exit
Ex:JE, tetanus, bubonic plague, hydatid disease,
trichinosis, rabies
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

26. a. Exotic disease
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
13. Infections transmitted to man from vertebrate animals are known as :
b. Anthropozoonoses
c.Zooanthroposes
d. Amphizoonoses
PYQS : #13

27. ANSWER : B
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
Anthropozoonoses Zoo-anthroposes Amphixenoses
Animal to Man
Ex: Rabies
Man to animal
Ex: Human Tb in
cattle
Either direction
Ex: T.cruzi
❑Note -Exotic disease : Not present
Ex: Yellow fever for India
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

28. Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
14. A family consists of 2 parents & 5 unvaccinated children susceptible to
measles. There occurs a primary case of measles and 3 secondary cases
within 10-14 days. Secondary attack rate is :
b. 50%
c.66%
All d. 75%
PYQS : #14
a. 25%

29. ANSWER : D
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
A family consists of 2 parents & 5 unvaccinated children
susceptible to measles. There occurs a primary case of measles
and 3 secondary cases within 10-14 days.
✓Adults are not susceptibles
✓5 unvaccinated children
✓Exclude primary case : 5-1 = 4
✓Out of 4 susceptibles: 3 secondary cases developed
✓SAR = ¾ = 75%
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

30. a. To trace contacts
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
15. Which of the following is not an use of incubation period :
b. To decide period of quarantine
c.To decide period of surveillance
All d. To decide period of isolation
PYQS : #15

31. ANSWER : D
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
Uses of IP :
Tracing the sourceof infection
To decide to vaccinate contacts or not
To classify epidemics
To estimate prognosis: Short IP-Worst prognosis
To decide Period of quarantine: Max IP
To decide Period of surveillance after an outbreak : 2 x IP
Isolation period : Decided based on period of communicability
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

32. a. Epidemic curve rises and falls sharply
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
16. All are true from Point source epidemic expect-
b. Clustering of cases within a short period of time
c.Person-to-person transmission
All d. Cases usually develop within one incubation period
PYQS : #16

33. ANSWER : C
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
❑Point source epidemic
✓Epidemic curve : rises and falls sharply
✓Nosecondary waves
✓Clusteringof cases within a short period of time
✓All cases usually develop within one incubation period
❑Note : Person-to-person transmission: Seen in
propogatedepidemics
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

34. a. It refers to group protection beyond what is afforded by the
protection of immunized individuals
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
17. All of the following are true about the herd immunity for infectious
diseases except-
b. It is likely to be more for infections that do not have a sub -clinical phase
c.It is affected by the presence and distribution of alternative animal hosts
All d. In the case of tetanus it does not protect the individual
PYQS : #17

35. ANSWER : B
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
❑Herd immunity :
It refers to group protection beyond what is afforded by the
protection of immunized individuals . So immune individuals/herd will
help in limiting disease transmission
Is likely to be more for infections that have a sub -clinical phase
Is affected by the presence/distribution of alternative animal hosts
Useful for : Measles, Polio, Diptheria, COVID
Not useful for : Tetanus
Dr. Rajeev Shetty
MD PSM (MAMC,
NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS:
2013-2022

36. a. Physiotherapy
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
18. Which of the following is a primary prevention in polio:
b. Rehabilitation
c. Provision of OPV in early infancy
d. Collection of stool sample for diagnosis
PYQS : #18

37. ANSWER : C
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
For polio :
✓Provision of OPVin early infancy-Primary level
✓Collection of stool sample for diagnosis –Secondary
level
✓Physiotherapy and Rehabilitation –Tertiary level
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

38. a. Salt restriction in high NCD area
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
19. Which of the following is primordial prevention for NCD (non communicable
disease):
b. Smoking cessation in high NCD area
c. Preservation of traditional diet in low NCD area
d. Early diagnosis and treatment
PYQS : #19

39. ANSWER : C
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
✓Preservation of traditional diet in low NCD area-Primordial
level
✓Salt restriction in high NCD area -Primary level
✓Smoking cessation in high NCD area -Primary level
✓Early diagnosis and treatment–Secondary level
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

40. a. 17D
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
20. A 32 yrold person travelling to Africa complains of jaundice ,hemorrhagic
fever. Diagnosis was confirmed by the presence of torresbodies . The strain of
live vaccine used for prevention :
b. Jeryl lynn
c. Nakayama
d. RA 27/3
PYQS : #20

41. ANSWER : A
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
✓H/O travelling to Africa
✓c/o -jaundice ,hemorrhagic fever.
✓Torres bodies +
✓Diagnosis –Yellow fever
✓Vaccine : 17 D-Live attenuated vaccine
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

42. Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
21.Agirlishavingh/oyeastinfectionandrepeatedrespiratoryillnesssince
shewas3monthold.Consideringimmunestatus,whichvaccineistobe
avoided?
b. MMR
c. TT
d. DPT
PYQS : #21
a. Inactivated polio vaccine

43. ANSWER : B
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
✓h/o yeast infection and repeated respiratory illness :
suggestive of immunosuppressed state
✓So live vaccines are contraindicated
✓Out of the options MMR is not advised
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

44. a. Typhoral
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
22. Vaccine to be given to 5
th
class student under school health programme
b. DPT
c. Td
d. Rabies
PYQS : #22

45. ANSWER : C
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
✓If 5
th
class student is mentioned . Then at 10 yrof age
under NIS , Td 1
st
dose is advised
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

46. a. Killed and subcutaneous
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
23.Thereisanoutbreakofencephalitisincommunity.Accordingtouniversal
immunizationprogramme,routeofadministrationofvaccineforthislikely
infection:
b.Killed and intramuscular
c. Live attenuated and subcutaneous
d. Live attenuated and intramuscular
PYQS : #23

47. ANSWER : C
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
❑Outbreak of encephalitis : Suggestive of JE
Under NIS :
✓JE vaccine (SA 14-14-2) is used
✓Type : Live attenuated
✓0.5ml , subcutaneous, left upper arm
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

48. a. Discardboth
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
A healthcare worker planning for an outreach session receives 2 open pentavalent
and 1 open MR vaccine. Which ones will you administer according to open vial policy :
b. Useboth
c. Use pentaand discard MR
d. Use MR and discard penta
PYQS : #24

49. ANSWER : C
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
Open vial policy :•Reuse of partially used multi dose vials in
subsequent session up to four weeks (28 days)
Conditionsthat
must be fulfilled
for the use of
open vial policy:
✓Date and time of opening mentioned
✓The expiry date has not passed
✓VVM : has not reached the discard point
Not applicable to
:
BCG , Measles/MR , JE , Rotavac,
Covishield/Covaxin
Applicable to : DPT, Td, OPV , IPV , PCV , Hep B , Pentavalent
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

50. a. Field trial
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
In a study conducted on typhoid carrier in three villages with three
different water sources. Investigation were done and the carrier status
were calculated and compared . The type of study is :
b.Cross sectional study
c.Cohort study
d. Case-control study
PYQS : #25

51. ANSWER : B
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
Cross sectional study:
✓Estimate prevalence
✓Compare prevalence/ burden between populations
✓Ex : Compare proportion of typhoid carriers between
villages
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

52. a. Case Control study requires more time than cohort study
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
Which of the following is not true regarding comparisionbetween Case control and
Cohort study?
b. Cohorts are chosen based on exposure in a cohort study
c. Cohort study is generally prospective in direction
d. Case control study must be used for rare diseases
PYQS : #26

53. ANSWER : A
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
✓Case Control study requires lesstime than cohort study
✓Cohorts are chosen based on exposure in a cohort study
✓Cohort study is usuallyprospective in direction
✓Case control study must be used for rare disease
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

54. a. Case Control study
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
Which of the following is used to study association between rare genetic
diseaseand exposure to carcinogens ?
b. Cohort study
c. RCT
d. Case series
PYQS : #27

55. ANSWER : A
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
To study association between rare genetic diseaseand
exposure to carcinogens
✓Case control study must be used for rare disease
✓Cohort study –Not suitable
✓RCT should not be done here
✓Case series : Cannot measure association
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

56. a. Beta Carotene is protective in lung cancer
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
In a Prospective Study Comprising 10000 subjects, 6000 subjects were put on
beta carotene and 4000 were not. 3 Out of the first 6000 developed lung cancer
and 2 out of the Second 4000 Developed lung cancer. What is the Interpretation
of the above?
b. Beta carotene is neither protective nor risk for lung cancer
c. The study design is not sufficient to draw any meaningful conclusions
d. Beta carotene is carcionogenic
PYQS : #28

57. ANSWER : B
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
Develop
cancer
Did not develop
cancer
Beta carotene-Yes 3 5997 6000
No 2 3998 4000
✓I exposed : 3/6000
✓I non-exposed : 2/4000
Risk ratio = Ie/ Ine= 1
✓No association
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

58. a. Results of attrition can beincluded in the analysis
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
False about RandomisedControl Trials is:
b. Randomisationis done while selecting subjects for study
c. Double blinding is most common form of blinding observed
d. Cross –over design helps removing ethical concerns
PYQS : #29

59. ANSWER : B
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
RCT
✓Results of attrition can beincluded in the analysis :
intention to treat analysis
✓Randomisationis done while treatment allocation
✓Random sampling done while selecting subjects for study
✓Double blinding is most common form of blinding observed
✓Cross –over design helps removing ethical concerns
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

60. a. Careful monitoring of blood pressure during the study
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
An epidemiologist wants to assess the effect of tea drinking on blood pressure. He decides
to do an intervention study. Which of the following measures does increase external
validity of the study?
b. Inclusion of a control group
c. Randomization
d. Random selection of participants from the general population
PYQS : #30

61. ANSWER : D
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
External validity Internal validity :
Generalisingstudy findings
to reference population
To increase the external
validity :
✓Random selection of
participants from the
general population
To apply study findings within
study subjects .
To increase the internal
validity in this study :
✓Careful monitoring of blood
pressure during the study
✓Inclusion of a control group
✓Randomization

62. a. Causal association
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
31. Association of high altitude areas with goiteris example of :
b. Direct association
c. Temporal association
d. Indirect association
PYQS : #31

63. ANSWER : C
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
High altitude -----------------------Goitre
Iodine deficiency
Indirect association (Confounder)
1.Associated with exposure
2.Risk factor for outcome

64. a. Confounding
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
The systematic distortion of retrospective studies that can be eliminated by a
prospective design is :
b. Effect modification
c. Recall bias
d. Measurement bias
PYQS : #32

65. ANSWER : C
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
✓The systematic distortion of retrospective
studies that can be eliminated by a prospective
design is : Recall bias
✓Seen in case control study and eliminated by
doing cohort studies
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

66. a. It can lead to indirect association
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
33. All are true regarding confounding factor expect:
b. It is associated both with exposure and disease
c. It is removed by matching in case control study
d. It is distributed equally in study & control groups
PYQS : #33

67. ANSWER : D
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
Confounder:
✓It can lead to indirect association
✓It is associated bothwith exposure and disease
✓It is removed by matching in case control study
✓It is distributed unequallyin study & control groups
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

68. a. 10-30% chances of reactivation
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
34. All of the following are true about varicella virus except :
b. All rashes are of same stageat one time
c. Secondary attack rate is 90 %
d. Rash commonly seen in flexor area
PYQS : #34

69. ANSWER : B
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
✓Rash : Pleomorphism–Different stages of rash
✓Secondary attack rate is 90 %
✓Rash commonly seen in flexor area
✓10-30% chances of reactivation
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

70. a.Give after 14-16 months with booster dose
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
A baby was given a dose measles vaccine at 6 months of age due to
epidemic of measles. Correct regarding giving subsequent dose will be :
b. Give one more dose as soon as possible
c. Give after 9 months of age
d. No dose required
PYQS : #35

71. ANSWER : C
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
✓A baby was given a dose measles vaccine at 6
months of age due to epidemic of measles.
✓Repeat next dose at 9
th
month
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

72. a.Influenza virus A is subject to frequent antigenic variations
Title One
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Title Four
Which of the following is not true about influenza virus :
b. Antigenic drift is a gradual antigenic change over a period of time
c. Antigenic drift is due to genetic recombination of virus
d.Major pandemics are due to antigenic shift
PYQS : #36

73. ANSWER : C
.
Title Two
Marketers must link the price
to the real and perceived value
of the product
Title Three
Marketers must link the price
to the real and perceived value
of the product
Title Four
Marketers must link the price
to the real and perceived value
of the product
✓Influenza Ais subject to frequent antigenic variations
✓Antigenic drift is a gradual antigenic changeover time
✓Antigenic drift is due to point mutation
✓Antigenic shift is due to genetic recombinationof virus
✓Major pandemicsare due to antigenic shift
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022

87. D

141. D

202. 202
THANX FOR ALL YOUR FEEDBACKS AND REVIEWS

203. 203

205. 205

206. 206

207. 207
It was so good to be with u on our insta
journey for the past 3 months .. Thanx
for being a part of our journey .. Best
wishes
Yours –RAJEEV SHETTY
Dr. Rajeev Shetty
MD PSM (MAMC, NewDelhi)
MIPHA ,MIAPSM
Faculty DAMS: 2013-2022
Faculty DBMCI: From 2023