A nursing student is helping to care for a patient who takes verapamil for stable angina. The nurse asks the student to explain the purpose of verapamil in the treatment of this patient
Which statement by the student indicates a need for further teaching? a. "It relaxes coronary artery spasms."
b. "It reduces peripheral resistance to reduce oxygen demands."
c. "It reduces the heart rate, AV conduction, and contractility."
d. "It relaxes the peripheral arterioles to re-duce afterload."
A
Verapamil does relax coronary artery spasms, but this is not useful in stable angina. Verapamil is used to relax coronary artery spasms in variant asthma. When used to treat stable angina, vera-pamil promotes relaxation of peripheral arterioles, which reduces peripheral resistance and de-creases afterload. It also reduces the heart rate, AV conduction, and contractility.
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