Correct Answer: A

Rationale: Corrected Rationale: Digitalis toxicity is a serious complication of digoxin therapy, particularly in older adults. Early symptoms include anorexia, nausea, and generalized weakness. Anorexia and weakness are common indicators of digitalis toxicity. Hyperactivity, hunger, tachycardia, increased urination, polyphagia, and polydipsia are not typical signs of digitalis toxicity. Monitoring for anorexia and weakness can help detect toxicity early and prevent life-threatening arrhythmias.

Correct Answer: B

Rationale: The correct teaching point for a client with hearing loss who has been fitted for a hearing aid is to use mild soap and water to clean the ear mold. It is important to keep the ear mold clean to prevent infections and maintain proper functioning. Choice A is incorrect because using the highest setting can lead to discomfort and may not be necessary for all situations. Choice C is incorrect as the hearing aid should generally be turned off when not in use, not just during sleep, to conserve battery life. Choice D is incorrect as immersing the hearing aid in saline solution can damage the device; it should be kept dry to prevent malfunction.

Correct Answer: C

Rationale: The correct answer is to advise the client to avoid potassium supplements. Spironolactone is a potassium-sparing diuretic, meaning it helps the body retain potassium. Adding potassium supplements on top of this medication can lead to hyperkalemia, an elevated level of potassium in the blood, which can be dangerous. Choices A, B, and D are incorrect because increasing potassium-rich foods, limiting sodium intake, and increasing protein intake are not specifically related to the dietary considerations when taking spironolactone.

Correct Answer: B

Rationale: The correct answer is B: Respiratory status. When caring for a client with asthma, it is essential to monitor their respiratory status to detect any changes in breathing or signs of airway obstruction. Monitoring heart rate (choice A) may be important in some situations but is not the priority when managing asthma. Blood glucose levels (choice C) and liver function (choice D) are not directly related to asthma and would not be the primary focus of monitoring for a client with this condition.

Correct Answer: B

Rationale: The correct answer is B: Hypotension. Metoprolol, a beta-blocker, can lead to a decrease in blood pressure, resulting in hypotension. Monitoring blood pressure regularly is essential to detect and manage this adverse effect. Choices A, C, and D are incorrect because metoprolol typically does not cause bradycardia, tachycardia, or hyperglycemia as its primary adverse effects.