A nurse is reviewing the medical record of a client who has osteomyelitis and a prescription for gentamicin IV every 8 hours. Which of the following serum laboratory results should the nurse report to the provider before administering the gentamicin?

Correct Answer: C

Rationale: An elevated creatinine level indicates potential kidney dysfunction, which is crucial when administering gentamicin as it can be nephrotoxic. Reporting a high creatinine level to the provider is essential to prevent further kidney damage. Choice A (Hematocrit 45%) is within the normal range and not directly related to gentamicin administration. Choice B (Sodium 140 mEq/L) and Choice D (Potassium 4.0 mEq/L) are also within normal limits and do not directly impact the administration of gentamicin.

Correct Answer: C

Rationale: The correct answer is C. Warfarin therapy requires regular blood testing to monitor INR levels and ensure therapeutic dosing. Option A is incorrect because acetaminophen can be taken with warfarin. Option B is not specific to warfarin administration. Option D is incorrect as it does not address the key monitoring requirement of blood testing while on warfarin.

Correct Answer: C

Rationale: Choice C is the correct answer because taking hypertension medication at the same time each day ensures its effectiveness in managing blood pressure. Consistency in medication intake is crucial to control hypertension. Option A focuses on dietary management, which is essential but not directly related to medication adherence. Option B is incorrect as stopping hypertension medication abruptly can lead to complications. Option D addresses the importance of exercise, which is beneficial for hypertension but not directly related to medication adherence.

Correct Answer: D

Rationale: The correct answer is D. When a client is prescribed warfarin, they should be educated to report any unusual bleeding or bruising promptly. Choices A, B, and C are incorrect. Avoiding foods rich in vitamin K is not necessary when taking warfarin, as long as intake remains consistent. Warfarin does not need to be taken with meals, and aspirin should not be taken for pain relief due to its blood-thinning effects, which can increase the risk of bleeding when combined with warfarin.

Correct Answer: B

Rationale: The correct answer is B. Potassium levels above 5.0 mEq/L can lead to cardiac issues, and a level of 6.5 mEq/L requires immediate intervention. Hyperkalemia can cause life-threatening cardiac arrhythmias. Choices A, C, and D are within normal ranges and do not require immediate intervention in the context of hemodialysis monitoring.