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 ["0.5"]
Explanation
To administer the correct dose of Morphine, the nurse needs to calculate the volume of medication to deliver 1 mg of Morphine. Since the medication is supplied in a concentration of 2 mg per 1 mL, the nurse would administer half of the volume of the vial to provide the ordered 1 mg dose. Therefore, the nurse should administer 0.5 mL of Morphine to the patient.
Correct Answer is ["C","D","E"]
Explanation
A. Padded tongue blades are not appropriate for seizure management and are not necessary in this context.
B. Soft wrist restraints are not required in this scenario unless otherwise indicated.
C. An Ambu bag and oxygen are crucial for respiratory support, especially if the patient has compromised breathing due to spinal cord injury.
D. Wrenches should be readily available to quickly remove halo traction in case of an emergency, such as if the patient's airway needs to be accessed.
E. An oral suction tube (Yankauer) is important for managing oral secretions, which can be challenging for patients with limited mobility.
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