Pharmacology for LPN

Correct Answer: C

Rationale: The correct instruction for the nurse to reinforce to the client regarding furosemide (Lasix) is to report any muscle cramps or weakness to the healthcare provider. Muscle cramps or weakness may indicate hypokalemia, a potential side effect of furosemide. Monitoring and reporting these symptoms promptly can help in preventing complications related to electrolyte imbalances. Choice A is incorrect because furosemide should be taken on an empty stomach. Choice B is not directly related to furosemide use; in fact, foods high in potassium may be beneficial for clients taking furosemide to prevent hypokalemia. Choice D is a common expected side effect of furosemide due to its diuretic action but is not as crucial to report as potential signs of electrolyte imbalances.

Correct Answer: B

Rationale: The correct answer is to instruct the client to report a persistent dry cough. ACE inhibitors can cause a common side effect of a persistent dry cough, which should be promptly reported to the healthcare provider for further evaluation and possible medication adjustment. Option A is incorrect because the timing of ACE inhibitor administration is usually not specified to be at bedtime. Option C is incorrect as increasing potassium-rich foods can lead to hyperkalemia when taking ACE inhibitors. Option D is incorrect because ACE inhibitors can be taken with or without food.

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.

Correct Answer: A

Rationale: Elevated serum troponin levels are indicative of myocardial damage and are commonly used as a diagnostic marker for myocardial infarction. Troponin levels typically rise within a few hours of an MI and remain elevated for several days, making it a crucial test for early detection and monitoring of cardiac injury. Serum creatinine is not typically elevated in the acute phase of a myocardial infarction. Serum sodium and serum albumin levels are not directly associated with myocardial infarction and are unlikely to be elevated in the first 24 hours following an MI.

Correct Answer: D

Rationale: For clients with COPD, too much oxygen can suppress their drive to breathe, leading to hypoventilation. Therefore, the nurse should maintain the oxygen flow rate at the lowest level that relieves hypoxia to prevent complications while ensuring adequate oxygenation. Setting the oxygen flow rate too high (Choice A) can be detrimental for the client with COPD. Removing oxygen while the client is eating (Choice B) can compromise oxygenation, which is essential even during meals. While nasal cannulas are commonly used, the choice of oxygen delivery device depends on the client's needs; there may be situations where a face mask (Choice C) is more appropriate.