Potential Exam Qs

Question 1

What term in epidemiology is used to refer to a set of criteria used in making a decision as to whether an individual has a disease or health event of interest and can either be confirmed, possible or probable?

Answer 1

Case Definition

Question 2

What important component of descriptive epidemiology is used to refer to the progress of a disease process in an individual over time,in the absence of intervention or treatment?

Answer 2

Natural History of Disease

Question 3

Screening is an important element of public health practice.What disease is screened using a purified protein derivative (PPD)?

Answer 3

Tuberculosis (TB)

Question 4

When selecting a study design,a number of questions have to be asked.Which of the following is not one of the questions considered when choosing a study design?
A.What is the unit of study?
B.Which individuals are smokers,and which ones are not?
C.What is the directionality of exposure?
D.Who manipulates the exposure variables?

Answer 4

B

Question 5

Prevalence and incidence are positively correlated variables. The incidence and duration determine the prevalence of a health condition. Which of the following factors does not impact the prevalence of a health condition?
A. The availability of treatment.
B. The availability of epidemiological studies. C. The migration of healthy individuals into or out of the population. D. The number of deaths from the health condition.

Answer 5

B

Question 6

A cohort study investigating the effect of chemical X on a disease was planned to run for 5 years.After 3 years enough cases were observed which were compared to controls .What type of study was that?
A. Retrospective cohort study
B. Nested cohort study C. Historical prospective study
D.Nested Case control study

Answer 6

D

Question 7

What term is used to describe the fact that a vaccine not only protects the vaccinated individual but also prevents that person from transmitting the disease to others? A. Immunization
B. Vaccination
C. Herd Immunity
D. Prophylaxis

Answer 7

C

Question 8

This is required for a disease to occur; an example is exposure to the human immunodeficiency virus before the development of acquired immunodeficiency syndrome: A. Necessary cause B. Risk factor
C. Determinant of health D. Sufficient cause

Answer 8

A