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 A
Explanation
A. A cold, pulseless foot indicates compromised blood flow, a medical emergency following an arteriogram. The nurse should immediately notify the physician to address potential vascular occlusion.
B. Elevating the limb can further impair circulation if blood flow is already compromised.
C. Covering the limb will not address the underlying issue of impaired circulation.
D. Repositioning may delay timely intervention in what may be a vascular emergency.
Correct Answer is ["A","C","E"]
Explanation
A. Blood pressure monitoring is essential, as spinal cord injuries at high levels can cause disruptions in autonomic regulation, leading to significant blood pressure fluctuations.
B. Bladder function is impacted by spinal cord injuries; however, it is not the initial priority in an emergency setting when life-threatening complications must be managed first.
C. Heart rate is critical as high spinal cord injuries can impact cardiac function by affecting autonomic control, potentially leading to bradycardia.
D. Reflexes are often assessed in cases of spinal injury, but they are not the immediate priority when stabilizing the patient upon arrival.
E. Respirations are a priority, as a C1 spinal cord injury can compromise respiratory function, necessitating immediate assessment to ensure adequate oxygenation and airway management.
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