Correct Answer: D

Rationale: An elevated serum creatinine level indicates impaired kidney function, which can affect the metabolism and excretion of enoxaparin, potentially leading to increased drug levels and risk of bleeding. Therefore, it is crucial to report a high serum creatinine level before administering enoxaparin. Platelet count, aPTT, and sodium levels are not directly related to the administration of enoxaparin and would not impact its use; hence, they do not need to be reported before starting the medication.

Correct Answer: D

Rationale: A WBC count of 15,000/mm3 is elevated, which may indicate infection, a common concern postoperatively. An elevated WBC count suggests the body is fighting an infection, and prompt reporting to the provider is essential for further evaluation and treatment. Serosanguineous drainage on the surgical dressing is expected in the immediate postoperative period, respiratory rate of 16/min is within the normal range, and a heart rate of 90/min is also within an acceptable range postoperatively. Therefore, these findings do not raise immediate concerns that necessitate reporting to the provider.

Correct Answer: B

Rationale: The correct answer is B. Bending at the waist can increase the risk of dislocation following hip arthroplasty. This movement can put strain on the hip joint and potentially lead to complications. Choices A, C, and D are all correct statements that promote proper postoperative care and help prevent complications. Sitting in a recliner, using a pillow between the legs when lying on the side, and avoiding crossing legs when sitting are all appropriate instructions for a client recovering from hip arthroplasty.

Correct Answer: B

Rationale: The correct answer is B. Critical pathways are structured, multi-disciplinary plans of care designed to decrease health care costs and improve outcomes by standardizing and streamlining processes. Choice A is incorrect because critical pathways have specific timeframes for completion. Choice C is incorrect as patients are expected to follow the critical pathway without deviations to achieve optimal outcomes. Choice D is incorrect because budgets do not create critical pathways; rather, they are based on clinical guidelines and best practices.

Correct Answer: D

Rationale: The correct answer is D. Black, tarry stools can indicate gastrointestinal bleeding, a serious adverse effect of warfarin that requires immediate medical attention. Option A is incorrect because while bruising is a common side effect of warfarin, it is not limited to the elbows. Option B is incorrect as a red rash is not a typical adverse effect of warfarin. Option C is also incorrect because developing a cough is not a reason to discontinue warfarin unless advised by a healthcare provider.