The nurse is caring for a patient diagnosed with unstable angina who is prescribed metoprolol. The patient asks the nurse, "Why do I have to take this medication?" What response by the nurse is most accurate?
"This medication will decrease how hard your heart works."
"It is prescribed to dilate your coronary arteries."
"It will prevent any irregular heartbeats."
"This medication makes your heart beat more forcefully."
The Correct Answer is A
A. Metoprolol, a beta-blocker, decreases the heart rate and reduces myocardial oxygen demand by lowering the workload on the heart, which is beneficial for managing unstable angina.
B. While metoprolol has some vasodilatory effects, its primary action is to reduce heart workload, not to dilate coronary arteries.
C. Although beta-blockers can reduce the risk of arrhythmias, the main purpose in angina management is to decrease cardiac workload.
D. Metoprolol does not make the heart beat more forcefully; instead, it decreases the force of contraction to reduce myocardial oxygen consumption.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. A hearing test does not address the infection symptoms and would not be the priority.
B. Obtaining a culture of the drainage is necessary to identify any infection and guide appropriate antibiotic treatment.
C. Removing a foreign body may not be relevant and could worsen infection symptoms if not necessary.
D. A CT scan may be needed if further complications are suspected, but it is not the priority for infection symptoms.
Correct Answer is C
Explanation
A. Reorienting confused patients is important but is not directly related to cerebellar injury.
B. While turning every 2 hours is important to prevent pressure injuries, it does not address the specific fall risk associated with cerebellar damage.
C. The cerebellum is responsible for balance and coordination, so injuries in this area increase the risk of falls. Ensuring the bed alarm is on provides immediate alerts if the patient attempts to get out of bed, helping to prevent falls.
D. Varying the schedule to prevent boredom is not a priority in the care of patients with cerebellar injury.
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