Correct Answer: A

Rationale: Increased thirst is a classic symptom of hyperglycemia due to the body trying to eliminate excess glucose through urine, leading to dehydration and increased thirst. Weight gain, decreased urination, and fatigue are not typical signs of hyperglycemia. Weight gain is more commonly associated with conditions like hypothyroidism or fluid retention. Decreased urination is not a typical symptom of hyperglycemia, as high blood sugar levels usually lead to increased urination. Fatigue can be a symptom of hyperglycemia, but it is not as specific or characteristic as increased thirst.

Correct Answer: B

Rationale: Corrected Rationale: When a client is receiving potassium-sparing diuretics, the healthcare professional should monitor for hyperkalemia. Potassium-sparing diuretics can cause potassium retention, leading to elevated potassium levels in the blood. Monitoring potassium levels is crucial to prevent hyperkalemia-related complications such as cardiac arrhythmias. Choices A, C, and D are incorrect because potassium-sparing diuretics typically do not cause hypokalemia, hypoglycemia, or hyponatremia.

Correct Answer: A

Rationale: Corrected Rationale: Metoprolol is a beta-blocker commonly used to treat conditions like hypertension and angina. As a beta-blocker, it primarily affects the cardiovascular system by reducing heart rate and blood pressure. Therefore, the nurse should monitor the client's blood pressure regularly to assess the drug's effectiveness and ensure that it is within the therapeutic range. Monitoring liver function, serum potassium levels, or blood glucose is not typically required for clients taking metoprolol, as its primary impact is on the heart and blood vessels, making choice A the most appropriate monitoring parameter.

Correct Answer: A

Rationale: Corrected Rationale: Decreased urine output can indicate renal complications or dehydration, which are common post-surgical complications. Monitoring urine output is crucial for detecting early signs of kidney dysfunction or fluid imbalances. Increased appetite, improved mobility, and normal temperature are not typical signs of immediate post-surgical complications and would not be the priority for monitoring in this case.

Correct Answer: B

Rationale: The correct answer is B: Hypokalemia. Furosemide is a loop diuretic that can lead to potassium loss through urine, causing hypokalemia. Hyperkalemia (choice A) is not a side effect of furosemide. Hyponatremia (choice C) and hypernatremia (choice D) are related to sodium levels rather than potassium, and they are not typically associated with furosemide use.