Practice Questions

In a study investigating the effect of a new medication on blood pressure, participants in the control group receive a placebo. What is the primary purpose of using a placebo in this context?

A. To ensure participant satisfaction.
B. To measure the effectiveness of the control group.
C. To blind participants to their treatment assignment.
D. To assess the long-term effects of the medication.
nmdcat.online BS Nursing
Jun 6, 2026
nmdcat.online BS Nursing
Jun 6, 2026

A nurse researcher is reviewing a published study and finds that the p-value for the primary outcome is 0.001. How should this finding be interpreted in the context of statistical significance?

A. The results are clinically significant.
B. The null hypothesis should be accepted.
C. The observed difference is likely due to chance.
D. There is a statistically significant difference.
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
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