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Preventive Medicine and Public Health Flashcards

7 cards from real COMAT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Preventive Medicine and Public Health flashcards as text

  1. The PHQ-9 is a validated 9-item clinical screening tool used to detect and grade the severity of which condition?

    Answer: Major depressive disorder

    The PHQ-9 corresponds to the nine DSM criteria for major depressive disorder and is widely used for both screening and monitoring treatment response.

  2. Childhood vaccination against measles is an example of which level of prevention?

    Answer: Primary prevention

    Childhood immunization is primary prevention because it prevents disease from occurring in the first place by establishing immunity prior to pathogen exposure.

  3. In a 2×2 diagnostic contingency table, which cell represents individuals who test positive but do NOT have the disease?

    Answer: False positive

    False positives are individuals without the disease who receive a positive test result, reflecting imperfect specificity of the screening tool.

  4. According to CDC guidelines, at what blood lead level in children is chelation therapy generally indicated?

    Answer: ≥45 µg/dL

    Chelation therapy (e.g., succimer) is indicated for blood lead levels ≥45 µg/dL in children, while lower levels trigger environmental and nutritional public health interventions.

  5. Which vaccine requires annual reformulation and administration because the causative pathogen undergoes rapid antigenic drift each season?

    Answer: Influenza vaccine

    Influenza virus undergoes antigenic drift annually, necessitating yearly reformulation of the vaccine to match circulating strains and annual administration for optimal protection.

  6. A study reports an odds ratio (OR) of 1.0 for the association between a risk factor and a disease. What does this indicate?

    Answer: No association exists between the risk factor and disease

    An odds ratio of 1.0 is the null value, indicating equal odds of disease in exposed and unexposed groups and therefore no association between the risk factor and the outcome.

  7. USPSTF recommends screening for hypertension in adults aged 18 and older using which approach?

    Answer: Office blood pressure measurement with out-of-office confirmation of elevated readings

    USPSTF recommends office blood pressure screening for all adults ≥18 years, with confirmation of elevated readings using ambulatory or repeated office measurements before diagnosing hypertension.