BCSE Preventive Medicine and Public Health 2

Question 1

Which measure best describes the probability that a person with a positive screening test truly has the disease?

Accepted Answer

Positive predictive value

Answer

Positive predictive value (PPV) is the proportion of true positives among all positive test results.

Question 2

The epidemiological transition refers to:

Accepted Answer

A shift from infectious to chronic diseases as leading causes of death

Answer

The epidemiological transition describes the historical shift from infectious/parasitic diseases to non-communicable chronic diseases as populations develop.

Question 3

A study finds a relative risk of 0.4 for coronary heart disease among regular exercisers versus sedentary individuals. The attributable risk percent in the exposed group is:

Accepted Answer

60%

Answer

Attributable risk percent = (RR - 1) / RR × 100 = (0.4 - 1) / 0.4 × 100; since RR < 1, it represents a 60% reduction in risk.

Question 4

Which level of prevention does administering HPV vaccine to adolescents represent?

Accepted Answer

Primary prevention

Answer

HPV vaccination prevents initial infection and subsequent cancer, making it primary prevention by reducing disease incidence.

Question 5

The 'sick building syndrome' is most commonly attributed to:

Accepted Answer

Poor indoor air quality and inadequate ventilation

Answer

Sick building syndrome symptoms are linked to time spent in a building with poor ventilation, chemical off-gassing, and biological contaminants.

BCSE - Basic and Clinical Sciences Examination Practice Test

BCSE - Basic and Clinical Sciences Examination Practice Test

BCSE Preventive Medicine and Public Health 2