A nurse is instructing a pregnant patient concerning the potential risk to her fetus from a pregnancy category B drug.
What would the nurse inform the patient?
There is evidence of human fetal risk, but the potential benefits from the use of the drug may be acceptable despite potential risks.
Animal studies have shown an adverse effect on the fetus, but there are no adequate studies in pregnant women.
Adequate studies in pregnant women have demonstrated that there is no risk to the fetus.
Animal studies have not demonstrated a risk to the fetus, but there have been no adequate studies in pregnant women.
The Correct Answer is D
Choice A rationale
Evidence of human fetal risk would categorize the drug as Category D or X, not Category B.
Choice B rationale
This statement aligns more with Category C drugs, where animal studies show adverse effects, but not Category B.
Choice C rationale
This describes Category A drugs, not Category B.
Choice D rationale
Category B drugs have shown no risk in animal studies but lack adequate human studies, fitting this description.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Knowing everything necessary for safe drug administration would imply complete knowledge and expertise, which is an unrealistic expectation for any nurse after just one course. Safe drug administration requires continuous learning and staying updated with new guidelines, drug interactions, and patient-specific factors.
Choice B rationale
General drug information includes understanding drug classes, mechanisms of action, and common side effects. Nurses can consult a drug guide for specific information such as dosage, contraindications, and interactions. This approach ensures they can safely and effectively administer medications while remaining adaptable to new drugs and evolving guidelines.
Choice C rationale
Understanding drug actions associated with each classification of medication is crucial, but it is only one aspect of pharmacology. Nurses also need to know about side effects, contraindications, and patient-specific considerations. Comprehensive drug knowledge requires ongoing education and consultation of reliable resources.
Choice D rationale
Current pharmacologic therapy knowledge is essential, but it is not static. Medical and pharmaceutical fields are constantly evolving, with new drugs, research, and guidelines emerging regularly. Nurses must engage in ongoing education to maintain their competence and provide the best care for their patients. .
Correct Answer is B
Explanation
Choice A rationale
Beta-adrenergic blockers generally do not decrease urinary output. These drugs primarily act on the cardiovascular system by blocking beta-adrenergic receptors, which results in lowered heart rate and blood pressure. Their effects are less pronounced on the renal system unless specific agents with renal effects are used.
Choice B rationale
Beta-adrenergic blockers decrease the strength of heart muscle contraction (negative inotropic effect). By blocking beta receptors, they inhibit the stimulatory effects of catecholamines on the heart, reducing the force of myocardial contraction, which helps decrease oxygen demand and control angina symptoms.
Choice C rationale
Beta-adrenergic blockers typically decrease heart rate (negative chronotropic effect) rather than increase it. They inhibit beta-adrenergic receptors, which leads to a slower heart rate and can help manage conditions like angina by reducing myocardial oxygen consumption.
Choice D rationale
Beta-adrenergic blockers decrease oxygen consumption by reducing heart rate and the force of contraction. These effects lower myocardial oxygen demand, which is beneficial for patients with angina by preventing episodes triggered by increased oxygen needs.
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