Practice Questions

155. A clinical decision is made to prescribe a broad-spectrum antibiotic to a patient with a severe infection before culture results are available. What epidemiological concept informs this initial empiric treatment?

A. Resistance patterns.
B. Local epidemiology of pathogens and their susceptibility.
C. Only individual patient symptoms.
D. The cost of the antibiotic.
nmdcat.online BS Nursing
Jun 6, 2026

154. A study finds a statistically significant association between a diet and a health outcome, but the effect size is very small and not clinically meaningful. What critical interpretation should be made?

A. The finding is highly important for public health.
B. Statistical significance does not always equate to clinical or public health significance.
C. The study was biased.
D. The sample size was too small.
nmdcat.online BS Nursing
Jun 6, 2026
nmdcat.online BS Nursing
Jun 6, 2026

152. What technical term describes the time from infection to the onset of infectiousness (shedding the pathogen)?

A. Incubation period.
B. Latent period.
C. Communicable period.
D. Generation time.
nmdcat.online BS Nursing
Jun 6, 2026

151. A cluster of severe adverse drug reactions is reported to a local hospital’s pharmacy. What is the urgent medicinal epidemiological action?

A. Advise patients to stop all medications.
B. Immediately investigate the cluster, potentially identifying a specific drug, batch, or interaction, and report to pharmacovigilance authorities.
C. Dismiss it as unrelated events.
D. Blame patient non-adherence.
nmdcat.online BS Nursing
Jun 6, 2026

150. In clinical practice, a doctor screens a patient for a rare disease using a test with very high specificity. What critical implication might this have for the patient?

A. Many false negative results.
B. Few false positive results, reducing unnecessary follow-up.
C. Unreliable diagnosis.
D. No need for confirmatory tests.
nmdcat.online BS Nursing
Jun 6, 2026

148. A drug is recalled from the market due to unacceptable severe adverse effects identified through post-marketing surveillance. What medicinal epidemiological outcome does this represent?

A. A successful drug launch.
B. A regulatory failure.
C. A successful pharmacovigilance system detecting a significant safety signal.
D. A minor inconvenience for patients.
nmdcat.online BS Nursing
Jun 6, 2026

147. What technical term describes the ability of a screening test to correctly identify individuals who do have the disease?

A. Specificity.
B. Sensitivity.
C. Positive Predictive Value.
D. Negative Predictive Value.
nmdcat.online BS Nursing
Jun 6, 2026

146. A national health surveillance system detects an unexpected increase in hospitalizations for severe pneumonia. What is the urgent epidemiological action?

A. Assume it is seasonal variation.
B. Initiate an investigation to determine if it is an emerging infectious disease or environmental cause.
C. Advise general public to get flu shot.
D. Only notify hospitals individually.
nmdcat.online BS Nursing
Jun 6, 2026
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