BCSE Preventive Medicine and Public Health 3

Question 1

In a randomized controlled trial, allocation concealment is used primarily to prevent:

Accepted Answer

Selection bias during enrollment

Answer

Allocation concealment prevents those enrolling participants from knowing upcoming treatment assignments, preventing selection bias.

Question 2

The PRECEDE-PROCEED model in health promotion planning begins with:

Accepted Answer

Social assessment and epidemiological diagnosis

Answer

PRECEDE begins with social and epidemiological assessment to identify quality of life concerns and health problems before planning interventions.

Question 3

Which waterborne disease is most associated with groundwater contamination from agricultural runoff containing nitrates?

Accepted Answer

Methemoglobinemia (blue baby syndrome)

Answer

High nitrate levels in drinking water cause methemoglobinemia in infants, reducing blood oxygen-carrying capacity.

Question 4

An odds ratio of 1.0 in a case-control study indicates:

Accepted Answer

No association between exposure and disease

Answer

An odds ratio of 1.0 means the odds of exposure among cases equal the odds of exposure among controls, indicating no association.

Question 5

The Healthy People initiative in the United States sets national health objectives on a:

Accepted Answer

10-year cycle

Answer

Healthy People sets 10-year national health improvement goals, with iterations including Healthy People 2020, 2030, etc.

BCSE - Basic and Clinical Sciences Examination Practice Test