A patient with hypertension is prescribed a nonselective beta-blocker. The nurse reviewing this patient’s chart before administering the medication will be most concerned about which other disease process?
Renal artery ligation stenosis
Bronchial asthma
Diabetes mellitus
Coronary artery disease
The Correct Answer is B
Choice A reason: Renal artery ligation stenosis is affected by beta-blockers’ renin reduction, but asthma’s bronchoconstriction risk is more immediate. Respiratory effects are critical, so this is incorrect.
Choice B reason: Nonselective beta-blockers can cause bronchospasm in asthma by blocking beta-2 receptors. This is a major concern, making it the correct disease to prioritize.
Choice C reason: Diabetes mellitus may mask hypoglycemia with beta-blockers, but asthma’s acute airway risk is more severe. Respiratory issues take precedence, so this is incorrect.
Choice D reason: Coronary artery disease benefits from beta-blockers’ cardiac effects. Asthma’s bronchoconstriction risk is more concerning, so this is incorrect for the primary concern.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Salt substitutes contain potassium, which risks hyperkalemia with spironolactone, a potassium-sparing diuretic. This is dangerous, so it’s incorrect for understanding.
Choice B reason: Spironolactone spares potassium, so stopping supplements prevents hyperkalemia, a serious risk. This shows correct understanding, making it the correct choice.
Choice C reason: Spironolactone reduces fluid, not causes overhydration. Monitoring for dehydration is more relevant, so this is incorrect for the medication’s effects.
Choice D reason: Spironolactone’s effects take days to weeks, not hours. Immediate improvement is unrealistic, so this is incorrect for proper patient understanding.
Correct Answer is D
Explanation
Choice A reason: To calculate the volume, divide the ordered dose (8 mg) by the concentration (5 mg/mL): 8 ÷ 5 = 1.6 mL. Choice A (1.4 mL) underestimates the volume, delivering only 7 mg (1.4 × 5), which is insufficient for the prescribed dose, making it incorrect for accurate medication administration.
Choice B reason: Calculating 8 mg ÷ 5 mg/mL yields 1.6 mL. Choice B (1.8 mL) would deliver 9 mg (1.8 × 5), exceeding the ordered dose. This overdose could increase the risk of sedation or respiratory depression, as Valium (diazepam) is a benzodiazepine with potent CNS effects, making this choice incorrect.
Choice C reason: The correct volume is 8 mg ÷ 5 mg/mL = 1.6 mL. Choice C (1.2 mL) delivers only 6 mg (1.2 × 5), which is below the prescribed dose. This underdose could result in inadequate therapeutic effects, such as insufficient anxiety relief or seizure control, making it an incorrect choice.
Choice D reason: Dividing the ordered dose (8 mg) by the concentration (5 mg/mL) gives 8 ÷ 5 = 1.6 mL. This volume accurately delivers the prescribed 8 mg of Valium, ensuring therapeutic efficacy for conditions like anxiety or seizures while minimizing risks of over- or under-dosing, making it the correct choice.
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