The nurse is caring for a patient who is taking a calcium-channel blocker.What adverse effects would the nurse caution this patient about?

Choice A rationaleItching and rash are not common adverse effects associated with calcium-channel blockers. They are more commonly related to other classes of medications.Choice B rationaleHypertension and tachycardia are not typical adverse effects of calcium-channel blockers. These medications are usually prescribed to treat hypertension and can actually cause a reduction in heart rate.Choice C rationaleNausea and diarrhea are possible side effects of many medications, but they are not specific adverse effects commonly linked to calcium-channel blockers.Choice D rationaleHeadache and dizziness are common adverse effects of calcium-channel blockers. These medications can cause vasodilation, leading to headaches and a decrease in blood pressure, which may result in dizziness, especially when standing up quickly. .