C.
Positive Predictive Value (PPV).
✓
D.
Negative Predictive Value (NPV).
✓
A.
Treat the patient with antiviral medication.
✓
B.
Immediately notify public health authorities for investigation and contact tracing.
✓
C.
Advise the patient to avoid that restaurant in the future.
✓
D.
Wait for more patients to report similar symptoms.
✓
D.
Susceptible population.
✓
A.
No special monitoring is needed.
✓
B.
Very close and ongoing monitoring of patients for adverse effects and therapeutic levels is required.
✓
C.
The drug is too dangerous to be approved.
✓
D.
The drug is extremely safe.
✓
A.
Prevalence of infections.
✓
B.
Incidence rate of new infections.
✓
C.
Mortality rate from infections.
✓
D.
Case-fatality rate from infections.
✓
A.
Provide more naloxone to paramedics only.
✓
B.
Implement immediate harm reduction strategies, distribute naloxone, and investigate the source of contaminated drugs.
✓
C.
Wait for the increase to plateau.
✓
D.
Blame the individuals for drug use.
✓
A.
The drug manufacturer's sales department.
✓
B.
A national pharmacovigilance system (e.g., FDA Adverse Event Reporting System, Yellow Card Scheme).
✓
D.
Directly to the patient's insurance company.
✓
A.
The association is highly plausible.
✓
B.
The association needs to be critically examined for biological plausibility; rare exposure causing common disease is less common.
✓
C.
Biological plausibility is irrelevant.
✓
D.
The chemical is definitely carcinogenic.
✓
B.
Randomized controlled trials (RCTs) in humans.
✓
C.
Qualitative research.
✓
D.
Prognostic benefit of early detection.
✓
A.
PPV will be very high.
✓
B.
PPV will be very low, leading to many false positives.
✓
C.
PPV will be unchanged.
✓
D.
PPV becomes irrelevant.
✓
A.
Issue a warning to the restaurant management.
✓
B.
Immediately shut down the restaurant, seize contaminated food, and initiate a thorough decontamination process.
✓
C.
Wait for the restaurant to improve conditions voluntarily.
✓
D.
Only advise customers to avoid the restaurant.
✓
A.
Increase law enforcement presence in the neighborhood.
✓
B.
Conduct a rapid epidemiological investigation to identify the substances involved, common sources, and affected demographics.
✓
C.
Blame the individuals for drug use.
✓
D.
Wait for the number of deaths to stabilize.
✓
