The nurse assisting with Phase 1 drug studies is talking with a woman who asks, "Why can't I participate in this study?" What would be the nurse's best response?
Women are more prone to adverse effects from medications.
Drugs pose a greater risk to women of reproductive age.
Drugs affect women differently than they affect men.
Drugs are tested only on men because they are stronger.
The Correct Answer is B
Choice A rationale
It is not correct to say that women are more prone to adverse effects from medications than men. Adverse effects can vary based on individual responses, and gender is not the sole determinant.
Choice B rationale
Women of reproductive age are often excluded from early-phase drug trials due to the potential risks that experimental drugs could pose to developing fetuses. The reproductive risk needs to be carefully managed to avoid harm.
Choice C rationale
While it is true that drugs can affect women differently than men, this answer does not directly address the specific reason why women are excluded from Phase 1 studies, which is primarily due to the potential risks to reproductive health.
Choice D rationale
This is incorrect because drugs are not tested only on men because they are stronger. This statement is not scientifically accurate and does not reflect the principles of clinical trial design.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Thiazide diuretics do not block the sodium pump. They act primarily on the distal convoluted tubule in the kidneys.
Choice B rationale
Thiazide diuretics block the chloride pump in the distal convoluted tubule, preventing the reabsorption of sodium and chloride, leading to increased urine output and decreased blood pressure.
Choice C rationale
Thiazide diuretics do not block the carbonic anhydrase pump. This action is associated with carbonic anhydrase inhibitors.
Choice D rationale
Thiazide diuretics do not block the potassium pump. They can cause potassium loss as a side effect, but this is not their primary mechanism of action.
Correct Answer is C
Explanation
Choice A rationale
Class I antiarrhythmic drugs block sodium channels, affecting phase 0 of the action potential, not phase 3.
Choice B rationale
Class IV antiarrhythmic drugs block calcium channels, which affects phase 2 of the action potential and slows heart rate and conduction.
Choice C rationale
Class III antiarrhythmic drugs block potassium channels, prolonging phase 3 of the action potential. This results in a prolonged repolarization period, reducing the risk of arrhythmia.
Choice D rationale
Class II antiarrhythmic drugs are beta-blockers that primarily affect phase 4 of the action potential, reducing heart rate and conduction, but they do not block potassium channels.
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