Correct Answer: A

Rationale: Bradycardia is a common sign of digoxin toxicity and should be closely monitored. Digoxin toxicity can lead to various cardiac dysrhythmias, with bradycardia being a significant indicator. Monitoring the client's heart rate is crucial to detect and manage digoxin toxicity promptly. Tachycardia, hypertension, and hyperglycemia are not typically associated with digoxin toxicity. Tachycardia is more commonly seen with inadequate treatment of heart failure, hypertension is a possible but less common effect, and hyperglycemia is not a typical sign of digoxin toxicity.

Correct Answer: A

Rationale: The correct answer is A: Hypokalemia. Furosemide, a loop diuretic, causes potassium loss, leading to hypokalemia. Monitoring potassium levels is crucial because hypokalemia can result in cardiac arrhythmias and muscle weakness. Choices B, C, and D are incorrect because furosemide does not typically cause hyperkalemia, hypernatremia, or hypoglycemia.

Correct Answer: C

Rationale: The correct answer is C. Processed foods often contain high amounts of sodium, so they should be limited or avoided on a low-sodium diet. Choosing processed foods can lead to increased sodium intake, counteracting the purpose of following a low-sodium diet. Option A shows an understanding of avoiding added salt, Option B suggests using alternatives to regular salt, and Option D indicates a willingness to check food labels for sodium content, all of which are appropriate for a low-sodium diet. Therefore, the client's statement about eating processed foods freely is incorrect and requires further teaching.

Correct Answer: A

Rationale: Increased shortness of breath with exertion is a concerning symptom in a client with chronic stable angina as it may indicate inadequate oxygen supply to the heart muscle, suggesting a worsening condition. This could be a sign of reduced blood flow to the heart, leading to increased work for the heart during exertion, resulting in increased shortness of breath. Choice B, improved tolerance to activity, is incorrect as it would indicate a positive response to treatment. Choice C, decreased frequency of chest pain, is incorrect as it would also suggest an improvement in the client's condition. Choice D, stable blood pressure readings, are not indicative of a worsening condition in chronic stable angina.

Correct Answer: C

Rationale: The correct answer is C: Avoid grapefruit and grapefruit juice. Grapefruit and grapefruit juice can interfere with the metabolism of statins, leading to an increased risk of adverse effects. It is crucial for clients on statin therapy to avoid grapefruit products to ensure the medication's effectiveness and safety. Choices A, B, and D are incorrect because they do not directly impact the metabolism or effectiveness of statin therapy.