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."

Answer and Explanation

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.

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Correct Answer is A

Explanation

A. Elevating the head of the bed, loosening clothing, and checking for urinary catheter obstruction are key steps to lower blood pressure and relieve triggers of autonomic dysreflexia, a potentially life-threatening condition.

B. A cool compress may provide comfort but does not directly address the primary triggers or symptoms of autonomic dysreflexia.

C. Semi-Fowler's position is insufficient compared to a full 90-degree sitting position, which helps reduce blood pressure.

D. IV access and oxygen may be required if symptoms do not resolve, but immediate actions focus on relieving the cause of dysreflexia.

Correct Answer is ["16"]

Explanation

To calculate the dosage of Vancomycin, first convert the patient's weight from pounds to kilograms, knowing that 1 kg equals 2.2 lbs. The patient weighs 110 lbs, which is equivalent to 50 kg (110 lbs / 2.2). Next, multiply the patient's weight in kilograms by the prescribed dosage of 20 mg/kg, resulting in a total dosage of 1000 mg (50 kg * 20 mg/kg). Since the vials contain 500 mg per 8 mL, divide the total dosage required by the amount per vial to find out how many milliliters should be withdrawn. This results in 16 mL (1000 mg / (500 mg/8 mL)).

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse suspects autonomic dysreflexia in the patient with a spinal cord injury at the level of C-7. After checking vital signs what are the priority nursing interventions?

Correct Answer is A

Explanation

A physician prescribes Vancomycin 20 mg/kg intravenous (IV). The patient weighs 110 lbs. The medication is available in vials which contain 500 mg per 8 mL. What should the nurse withdraw from the vial? (round to the nearest whole number)

Correct Answer is ["16"]

Explanation

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