The nurse should monitor the client for clinical manifestations of digoxin toxicity if the laboratory report reflects a serum:
glucose of 110 mg/dL.
potassium of 3.0 mEq/L.
calcium of 9.0 mg/dL.
sodium of 133 mEq/L.
The Correct Answer is B
Choice A reason: Glucose of 110 mg/dL is not a finding that indicates digoxin toxicity. It is a normal blood glucose level for a fasting or non-fasting client.
Choice B reason: Potassium of 3.0 mEq/L is a finding that indicates digoxin toxicity. It is a low serum potassium level, which increases the risk of digoxin toxicity by enhancing the binding of digoxin to cardiac cells. The nurse should monitor the client for signs and symptoms of digoxin toxicity, such as nausea, vomiting, anorexia, fatigue, confusion, visual disturbances, and cardiac arrhythmias.
Choice C reason: Calcium of 9.0 mg/dL is not a finding that indicates digoxin toxicity. It is a normal serum calcium level for an adult client.
Choice D reason: Sodium of 133 mEq/L is not a finding that indicates digoxin toxicity. It is a slightly low serum sodium level, which may indicate hyponatremia, but not digoxin toxicity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: This is a high-fat, high-sodium, and high-calorie meal that is not suitable for a client with hypertension. Fried foods, processed meats, and baked beans are sources of saturated fat and sodium that can raise blood pressure and cholesterol levels. Cake is a source of added sugar that can contribute to obesity and diabetes.
Choice B reason: This is a moderate-fat, moderate-sodium, and moderate-calorie meal that is not ideal for a client with hypertension. Fried flounder and tomato soup are sources of fat and sodium that can increase blood pressure. White rice is a refined carbohydrate that can spike blood sugar levels and increase the risk of diabetes.
Choice C reason: This is a high-fat, high-sodium, and high-calorie meal that is not appropriate for a client with hypertension. Barbecue pulled pork sandwich, mashed potatoes, and ice cream are sources of saturated fat and sodium that can elevate blood pressure and cholesterol levels. Fresh green beans are the only healthy component of this meal.
Choice D reason: This is a low-fat, low-sodium, and low-calorie meal that is suitable for a client with hypertension. Baked tuna, fresh broccoli, brown rice, and fresh cantaloupe are sources of lean protein, fiber, complex carbohydrates, vitamins, minerals, and antioxidants that can lower blood pressure and cholesterol levels, prevent obesity and diabetes, and promote cardiovascular health.
Correct Answer is A
Explanation
Choice A reason: Decreasing the incidence of tachycardia is not the main therapeutic effect of atenolol for coronary artery disease. Atenolol is a beta-blocker that lowers the heart rate, but this is not the primary goal of therapy for coronary artery disease. Coronary artery disease is caused by atherosclerosis, which is the buildup of plaque in the arteries that supply the heart. This reduces the blood flow and oxygen to the heart muscle and causes angina, or chest pain.
Choice B reason: Dilating the coronary arteries is not the therapeutic effect of atenolol for coronary artery disease. Atenolol does not directly affect the diameter of the coronary arteries. It works by blocking the beta receptors in the heart and reducing the response to adrenaline and other stress hormones. This lowers the blood pressure and the oxygen demand of the heart.
Choice C reason: This is the correct answer. Decreasing cardiac workload is the therapeutic effect of atenolol for coronary artery disease. Atenolol reduces the contractility and the excitability of the heart muscle, which lowers the force and the frequency of the heartbeats. This decreases the amount of work that the heart has to do and the amount of oxygen that it needs. This helps prevent or relieve anginal attacks and improve the quality of life of the client.
Choice D reason: Increasing the strength of myocardial contraction is not the therapeutic effect of atenolol for coronary artery disease. Atenolol does not increase the strength of myocardial contraction, but rather decreases it. Increasing the strength of myocardial contraction would increase the oxygen demand of the heart and worsen the angina. Atenolol aims to reduce the oxygen demand of the heart and improve the blood supply to the heart.
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