a nurse is caring for a client who has a new prescription for warfarin which of the following laboratory tests should the nurse use to monitor the cli
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Nursing Elites

ATI RN

ATI Comprehensive Exit Exam

1. A nurse is caring for a client who has a new prescription for warfarin. Which of the following laboratory tests should the nurse use to monitor the client's therapeutic response to the medication?

Correct answer: A

Rationale: The correct answer is A: INR. The INR (International Normalized Ratio) is the laboratory test used to monitor the therapeutic response of warfarin. It helps ensure that the client's clotting time is within the desired range to prevent complications such as excessive bleeding or clotting. Choice B, aPTT (Activated Partial Thromboplastin Time), is not typically used to monitor warfarin therapy but rather for assessing heparin therapy. Choice C, Platelet count, assesses the number of platelets in the blood and is not specifically used to monitor warfarin therapy. Choice D, Hemoglobin A1C, is a test used to monitor long-term blood sugar control in diabetic patients and is not relevant to monitoring warfarin therapy.

2. A nurse is planning care for a client who is 1 day postoperative following a total knee arthroplasty. Which of the following interventions should the nurse include?

Correct answer: C

Rationale: Encouraging the client to ambulate as soon as possible is essential in preventing complications like deep vein thrombosis post knee arthroplasty. While keeping the affected leg elevated and applying ice packs can be beneficial in certain situations, early ambulation takes precedence in this case. Performing range-of-motion exercises hourly may not be necessary and could potentially cause more harm than good if not done correctly or excessively.

3. A client is receiving warfarin for atrial fibrillation. Which of the following laboratory tests should the nurse expect to be ordered to monitor the effect of warfarin?

Correct answer: B

Rationale: The correct answer is B: International normalized ratio (INR). When a client is on warfarin therapy, the INR is monitored regularly to assess the anticoagulant effects of the medication. A therapeutic INR range for most indications is between 2.0 to 3.0. Choices A, C, and D are not typically used to monitor the effect of warfarin. Platelet count assesses the number of platelets in the blood, PT measures the clotting time of plasma, and PTT evaluates the intrinsic pathway of coagulation.

4. A nurse is preparing discharge information for a client who has type 2 diabetes mellitus. Which of the following resources should the nurse provide?

Correct answer: B

Rationale: The correct answer is B. Food exchange lists from the American Diabetes Association are a reliable resource for meal planning in diabetes. They provide structured guidance on appropriate food choices and portion sizes. Choice A, personal blogs, may not always offer accurate and evidence-based information. Choice C, diabetes medication information from the Physicians' Desk Reference, is not directly related to meal planning. Choice D, food label recommendations from the Institute of Medicine, while important for understanding nutritional content, may not provide the structured meal planning guidance needed for a client with type 2 diabetes mellitus.

5. What is the priority nursing action for a patient with shortness of breath?

Correct answer: A

Rationale: Administering oxygen is the priority nursing action for a patient experiencing shortness of breath. Oxygen therapy aims to improve oxygenation levels quickly, addressing the underlying cause of the symptom. Repositioning the patient, checking oxygen saturation, and elevating the head of the bed are important interventions but administering oxygen takes precedence in this scenario to ensure adequate oxygen supply to the body.

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