A patient recently prescribed a calcium channel blocker for the treatment of hypertension is experiencing dizziness when rising to a standing position. Which action will the nurse take?
Instruct the patient to monitor weight daily.
Inform the patient to discontinue the medication.
Advise the patient to increase dietary sodium.
Encourage the patient to sit down if feeling faint.
The Correct Answer is D
Choice A reason: This is not the action that the nurse should take. Instructing the patient to monitor weight daily is not relevant to the patient's dizziness. Weight monitoring is more useful for patients with fluid retention or heart failure, which are not caused by calcium channel blockers.
Choice B reason: This is not the action that the nurse should take. Informing the patient to discontinue the medication is not appropriate, as this can cause rebound hypertension and other complications. The patient should not stop taking the medication without consulting their health care provider.
Choice C reason: This is not the action that the nurse should take. Advising the patient to increase dietary sodium is not helpful, as this can worsen the hypertension and increase the risk of cardiovascular events. The patient should follow a low-sodium diet and avoid salt substitutes that contain potassium.
Choice D reason: This is the action that the nurse should take. Encouraging the patient to sit down if feeling faint is a simple and effective way to prevent falls and injuries. Dizziness is a common side effect of calcium channel blockers, especially when the patient changes position or stands up quickly. This is due to the orthostatic hypotension (a drop in blood pressure when standing up) caused by the vasodilation effect of the medication. However, this side effect is usually mild and transient, and can be prevented by rising slowly from a sitting or lying position, drinking plenty of fluids, and avoiding alcohol.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: This is not an adverse effect of ACE inhibitors. Insomnia is a common side effect of stimulant medications, such as caffeine or amphetamine, which increase the activity of the central nervous system and cause difficulty falling or staying asleep.
Choice B reason: This is not an adverse effect of ACE inhibitors. Bradycardia is a slow heart rate, usually below 60 beats per minute. ACE inhibitors do not cause bradycardia, but rather lower the blood pressure by blocking the formation of angiotensin II, a potent vasoconstrictor.
Choice C reason: This is not an adverse effect of ACE inhibitors. Chest pain is a sign of angina or myocardial infarction, which are caused by reduced blood flow to the heart muscle. ACE inhibitors can actually prevent or treat these conditions by improving the blood flow and reducing the workload of the heart.
Choice D reason: This is an adverse effect of ACE inhibitors. Hyperkalemia is a high level of potassium in the blood, which can cause cardiac arrhythmias and muscle weakness. ACE inhibitors can cause hyperkalemia by reducing the secretion of aldosterone, a hormone that regulates the sodium and potassium balance in the body.
Correct Answer is C
Explanation
Choice A reason: An increase in antithrombotic substances is not a cause of atherosclerosis. Antithrombotic substances are agents that prevent or reduce the formation of blood clots. They can be used to treat or prevent atherosclerosis, not cause it.
Choice B reason: Congenital heart disease is not a cause of atherosclerosis. Congenital heart disease is a condition that is present at birth and affects the structure or function of the heart. It can be caused by genetic or environmental factors, not by atherosclerosis.
Choice C reason: Endothelial injury and inflammation are causes of atherosclerosis. Endothelial injury is the damage to the inner lining of the blood vessels, which can be caused by various factors such as high blood pressure, high cholesterol, smoking, or diabetes. Inflammation is the body's response to the injury, which involves the activation of immune cells and the release of cytokines and growth factors. These processes lead to the formation of plaque, which is composed of cholesterol, fatty substances, calcium, and other materials.
Choice D reason: High serum potassium levels are not a cause of atherosclerosis. High serum potassium levels are a condition that affects the balance of electrolytes in the blood. It can be caused by kidney disease, medication side effects, or excessive intake of potassium-rich foods. It can affect the heart rhythm and function, but it does not cause atherosclerosis.
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