A patient with type 2 diabetes is prescribed metformin. What instruction should the nurse provide regarding this medication?

Correct Answer: C

Rationale: Step-by-step rationale for choice C: 1. Metformin can cause gastrointestinal side effects. 2. Taking it with meals helps reduce stomach upset. 3. It also helps in better absorption and effectiveness. 4. Therefore, the nurse should instruct the patient to take metformin with meals. Summary of other choices: A: Taking on an empty stomach can worsen gastrointestinal side effects. B: Metformin doesn't typically cause hypoglycemia. D: Increasing simple carbohydrates can counteract the effects of metformin.

Correct Answer: A

Rationale: The correct answer is A: Hyperkalemia. Lisinopril is an ACE inhibitor that can cause potassium retention, leading to hyperkalemia. Monitoring potassium levels is crucial to prevent serious complications like cardiac arrhythmias. Hypoglycemia (B) is not a common side effect of lisinopril. Bradycardia (C) and constipation (D) are also not typically associated with lisinopril use. Hyperkalemia is the most critical side effect to monitor in this case.

Correct Answer: B

Rationale: The correct answer is B: Weight gain. Olanzapine is known to cause metabolic side effects, including weight gain. This is important to monitor as it can lead to various health issues such as diabetes and cardiovascular problems. Hypertension (A), hypoglycemia (C), and bradycardia (D) are not commonly associated with olanzapine use, making them less likely side effects to monitor in this case.

Correct Answer: B

Rationale: The correct answer is B: Reduce fluid retention. Furosemide is a loop diuretic that works by increasing urine production, leading to the removal of excess fluid and sodium from the body. This helps reduce fluid volume overload in conditions like heart failure. Choice A is incorrect because while reducing fluid retention may indirectly improve cardiac output by reducing preload, furosemide itself does not directly increase cardiac output. Choice C is incorrect as furosemide does not have a direct effect on heart rate. Choice D is incorrect because while furosemide may lower blood pressure as a result of reducing fluid volume, its primary action is to reduce fluid retention, not specifically lower blood pressure.

Correct Answer: A

Rationale: The correct answer is A: Hyperglycemia. Prednisone is a corticosteroid that can cause an increase in blood glucose levels by promoting gluconeogenesis and decreasing insulin sensitivity. Monitoring for hyperglycemia is crucial as it can lead to serious complications such as diabetic ketoacidosis. Bradycardia (B) and hypotension (C) are not typical side effects of prednisone, as it tends to cause fluid retention and hypertension. Hyperkalemia (D) is also unlikely as prednisone can actually cause hypokalemia due to increased renal potassium excretion.