MCQs

11212 questions found

Practice Questions

nmdcat.online BS Nursing
Jun 6, 2026

162. What technical term describes the measure of association in a case-control study, approximating the relative risk when the disease is rare?

A. Relative Risk (RR).
B. Odds Ratio (OR).
C. Attributable Risk (AR).
D. Prevalence Ratio (PR).
nmdcat.online BS Nursing
Jun 6, 2026

161. A cluster of severe birth defects is reported in a community. What is the urgent epidemiological action?

A. Dismiss it as random genetic mutations.
B. Initiate an investigation to identify common environmental exposures, maternal factors, or infectious agents during pregnancy.
C. Advise all pregnant women to leave the community.
D. Only focus on treating the affected children.
nmdcat.online BS Nursing
Jun 6, 2026

159. A study attempts to estimate the prevalence of diabetes by administering a questionnaire that asks about self-reported diagnosis. What critical type of bias might this introduce?

A. Selection bias.
B. Information bias (e.g., misclassification due to self-report).
C. Confounding.
D. Observer bias.
nmdcat.online BS Nursing
Jun 6, 2026

158. A new medicinal drug is found to be effective but also carries a significant risk of a rare, severe adverse event. What critical ethical consideration guides its approval and prescribing?

A. Only efficacy matters.
B. The balance between benefits and harms, and informed consent for patients.
C. Adverse events are always acceptable.
D. Only the cost of the drug matters.
nmdcat.online BS Nursing
Jun 6, 2026

157. What technical measure quantifies the number of deaths in a population over a specified period per unit of population?

A. Incidence rate.
B. Prevalence rate.
C. Crude mortality rate.
D. Case-fatality rate.
nmdcat.online BS Nursing
Jun 6, 2026

156. A patient is diagnosed with a highly resistant strain of tuberculosis. What is the urgent clinical and epidemiological responsibility?

A. Treat the patient and send them home.
B. Immediately initiate isolation, multi-drug therapy, and rigorous contact tracing to prevent widespread transmission.
C. Wait for the disease to spread to other family members.
D. Only treat the patient's symptoms.
nmdcat.online BS Nursing
Jun 6, 2026

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
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