Correct Answer: B

Rationale: The correct answer is B: Serum creatinine. Acetaminophen is metabolized by the liver, so serum creatinine levels should be monitored for potential hepatotoxicity. Monitoring serum creatinine can help detect liver damage, a potential adverse effect of acetaminophen. Choices A, C, and D are incorrect because serum glucose is not directly affected by acetaminophen, serum potassium is not typically monitored for acetaminophen adverse effects, and serum bilirubin is more related to bile metabolism rather than acetaminophen-induced hepatotoxicity.

Correct Answer: A

Rationale: A persistent dry cough is a common side effect of lisinopril. Lisinopril is an ACE inhibitor that can cause a cough due to the accumulation of bradykinin. Weight gain, dry mouth, and hyperglycemia are not typically associated with lisinopril use, making them incorrect choices in this scenario.

Correct Answer: D

Rationale: The correct answer is D: Uncontrolled hypertension. Clopidogrel should not be administered to clients with uncontrolled hypertension due to the increased risk of bleeding. Recent surgery, peptic ulcer disease, and bleeding disorders are not absolute contraindications for clopidogrel administration.

Correct Answer: C

Rationale: The correct answer is C: Infusion reaction. Vancomycin can cause infusion reactions like 'Red Man Syndrome,' which involves rashes, flushing, tachycardia, and hypotension. Hepatotoxicity (choice A) is not a common adverse effect of vancomycin. Constipation (choice B) is not typically associated with vancomycin use. Immunosuppression (choice D) is not a direct adverse effect of vancomycin therapy.

Correct Answer: D

Rationale: The nurse should combine both orders of insulin in the same syringe. To prepare the correct dose, the nurse should withdraw the regular insulin first (14 units) and then the NPH insulin (28 units), totaling 42 units. This combination ensures the client receives the prescribed doses of both types of insulin. Choices A, B, and C are incorrect because the nurse needs to prepare and administer both types of insulin as prescribed, resulting in a total of 42 units in the syringe.