The nurse is caring for a 35-year-old woman taking a beta hydroxy-beta-methylglutaryl coenzyme A(HMG-Co
Use barrier contraceptives.
Need for frequent ophthalmic examinations.
Information about a cholesterol-lowering diet.
Calling the doctor with any respiratory symptoms.
The Correct Answer is A
Choice A rationale
Barrier contraceptives are recommended for women taking HMG-CoA reductase inhibitors due to the potential teratogenic effects of these drugs. This precaution is crucial as these medications can cause fetal harm if used during pregnancy.
Choice B rationale
While ophthalmic examinations may be important for other medications, they are not a primary concern for HMG-CoA reductase inhibitors. These drugs mainly affect cholesterol synthesis and have less direct impact on vision.
Choice C rationale
Although a cholesterol-lowering diet is beneficial, it is not the primary teaching point when discussing HMG-CoA reductase inhibitors. The emphasis should be on medication adherence and managing potential adverse effects.
Choice D rationale
Reporting respiratory symptoms is important for many medications but is not the primary focus for HMG-CoA reductase inhibitors. The priority is to inform patients about the importance of contraception and potential side effects related to the medication.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Discontinuing carbidopa-levodopa abruptly can lead to withdrawal symptoms and a worsening of Parkinson's symptoms. Insomnia is a possible side effect but should be managed under medical supervision.
Choice B rationale
Carbidopa-levodopa can cause orthostatic hypotension, leading to dizziness and an increased risk of falls. Patients should be advised to rise slowly from a sitting or lying position to prevent these effects.
Choice C rationale
Dark urine can be a harmless side effect of carbidopa-levodopa due to the excretion of metabolites. It is not usually a cause for concern unless accompanied by other symptoms.
Choice D rationale
High-protein foods can interfere with the absorption of carbidopa-levodopa, reducing its effectiveness. It is recommended to take the medication on an empty stomach or with low-protein foods.
Correct Answer is D
Explanation
Choice A rationale
Magnesium plays a role in various cellular functions, including enzyme activity and muscle contraction, but it does not directly inactivate troponin to enable actin and myosin interaction.
Choice B rationale
Sodium is essential for action potential generation and nerve impulse transmission but does not directly influence troponin activity or muscle contraction through actin and myosin bridge formation.
Choice C rationale
Potassium is critical for maintaining cellular resting membrane potential and repolarization of cells but does not play a direct role in inactivating troponin to facilitate muscle contraction.
Choice D rationale
Calcium is the electrolyte that inactivates troponin, allowing actin and myosin to form cross-bridges and contract muscle fibers. Calcium binds to troponin, causing a conformational change that exposes binding sites for myosin on actin filaments.
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