A nurse is preparing to administer verapamil by IV bolus to a client who is having cardiac dysrhythmias. For which of the following adverse effects should the nurse monitor when giving this medication?

A. Hyperthermia is not a known adverse effect of verapamil. This medication does not typically cause elevated body temperature. B. Muscle pain is not a common adverse effect of verapamil. It is more commonly associated with statins or other medications affecting muscle tissue. C. Ototoxicity, or hearing loss, is not a common side effect of verapamil. This adverse effect is more often seen with certain antibiotics or diuretics. D. Hypotension is a known side effect of verapamil, especially when administered intravenously. Verapamil is a calcium channel blocker that can cause vasodilation, leading to a drop in blood pressure. Monitoring for hypotension is critical during administration.