Practice Questions

4. A public health official is faced with a rapidly spreading viral infection in a densely populated city. What is the critical public health principle to consider for intervention?

A. Individual patient isolation is sufficient.
B. The concept of herd immunity and vaccination strategies.
C. That the disease will naturally burn out.
D. Only treating severe cases will halt spread.
nmdcat.online BS Nursing
Jun 6, 2026

3. A pharmaceutical company conducts a Phase III clinical trial for a new hypertension drug. What is the technical purpose of this study design in a medicinal context?

A. To establish the safety of the drug in a small group.
B. To assess the drug's efficacy and safety against a placebo or standard treatment in a large, diverse patient population.
C. To determine the drug's mechanism of action.
D. To compare the drug to an alternative therapy already on the market.
nmdcat.online BS Nursing
Jun 6, 2026

2. A study calculates a Relative Risk (RR) of 0.5 for lung cancer in individuals exposed to a new air filter compared to an unexposed group. What is the technical interpretation of this finding?

A. The air filter doubles the risk of lung cancer.
B. The air filter halves the risk of lung cancer.
C. The air filter has no effect on lung cancer risk.
D. The air filter increases the risk of lung cancer by 50%.
nmdcat.online BS Nursing
Jun 6, 2026

1. A sudden increase in influenza cases is reported in a local community, significantly exceeding the expected number for the season. What is the most urgent epidemiological action?

A. Wait for more data to accumulate.
B. Initiate an immediate outbreak investigation to identify the source and mode of transmission.
C. Recommend personal protective equipment for all residents.
D. Focus on individual patient treatment.
nmdcat.online BS Nursing
Jun 6, 2026

A patient with a severe allergic reaction experiences a sudden drop in blood pressure. This is due to:

A. Widespread vasoconstriction.
B. Massive vasodilation and increased capillary permeability.
C. Bradycardia.
D. Increased cardiac output.
nmdcat.online BS Nursing
Jun 6, 2026

A patient with chronic kidney disease (CKD) develops hyperphosphatemia. This is primarily due to:

A. Increased renal excretion of phosphate.
B. Impaired renal excretion of phosphate.
C. Increased dietary phosphate intake.
D. Decreased vitamin D activation.
nmdcat.online BS Nursing
Jun 6, 2026

A patient with a genetic disorder has abnormal hemoglobin, leading to sickled red blood cells. This condition is:

A. Hemophilia.
B. Thalassemia.
C. Sickle cell anemia.
D. Aplastic anemia.
nmdcat.online BS Nursing
Jun 6, 2026

A patient with a spinal cord injury at T6 develops neurogenic shock. This type of shock is characterized by:

A. Tachycardia and vasoconstriction.
B. Bradycardia and massive vasodilation.
C. Increased sympathetic tone.
D. Fluid overload.
nmdcat.online BS Nursing
Jun 6, 2026

A patient with chronic liver disease develops ascites. This is primarily due to:

A. Decreased portal venous pressure.
B. Increased albumin synthesis.
C. Portal hypertension and hypoalbuminemia.
D. Increased lymphatic flow from the legs.
nmdcat.online BS Nursing
Jun 6, 2026
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