which lab value is critical to monitor in patients receiving warfarin therapy
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Nursing Elites

ATI RN

ATI Exit Exam RN

1. Which lab value is critical to monitor in patients receiving warfarin therapy?

Correct answer: A

Rationale: The correct answer is A: Monitor INR. INR (International Normalized Ratio) is crucial to monitor in patients receiving warfarin therapy. INR measures the blood's ability to clot and is used to ensure that patients are within the therapeutic range for warfarin therapy. This is important to prevent both clotting disorders and bleeding complications. Monitoring potassium levels (choice B) is not directly related to warfarin therapy. Platelet count (choice C) and sodium levels (choice D) are important parameters but are not as critical to monitor specifically for patients on warfarin therapy.

2. A nurse is preparing to perform a sterile dressing change. Which of the following actions should the nurse take when setting up the sterile field?

Correct answer: B

Rationale: When setting up a sterile field for a dressing change, the nurse should open the outermost flap of the sterile kit away from the body. This action helps maintain the sterility of the field by minimizing the risk of contamination. Option A is incorrect because the cap from the solution should be placed sterile side down to prevent contamination. Option C is incorrect because the sterile dressing should be placed at least 1.25 cm away from the edge of the sterile field to maintain its sterility. Option D is incorrect because the sterile field should be set up above waist level to prevent potential contamination from reaching the field.

3. A client who has a new diagnosis of tuberculosis should be placed in which type of room to prevent the spread of airborne pathogens?

Correct answer: D

Rationale: Clients diagnosed with tuberculosis should be placed in a negative pressure room to prevent the spread of airborne pathogens. Option A is incorrect because administering isoniazid is a treatment for tuberculosis, not a preventive measure related to infection control. Option B is incorrect as droplet isolation is used for diseases transmitted through respiratory droplets, not airborne pathogens like tuberculosis. Option C is incorrect as wearing a surgical mask is not sufficient to prevent the spread of tuberculosis in healthcare settings; placing the client in a negative pressure room is the most effective measure.

4. A nurse is caring for a client who is 2 hours postoperative following a thoracotomy. Which of the following findings should the nurse report to the provider?

Correct answer: C

Rationale: The correct answer is C. Chest tube drainage of more than 100 mL/hr may indicate active bleeding, which is a serious complication post-thoracotomy surgery. This finding should be reported to the healthcare provider immediately for further evaluation and intervention. Choices A, B, and D are within normal limits for a client 2 hours post-thoracotomy and do not require immediate reporting. Oxygen saturation of 95% is acceptable, and a heart rate of 88/min is within the normal range for an adult.

5. A nurse is assessing a client who is 48 hours postoperative following abdominal surgery. Which of the following findings should the nurse report to the provider?

Correct answer: D

Rationale: The correct answer is D. An elevated WBC count can indicate a potential infection, especially in a postoperative client. This finding should be reported to the provider for further evaluation and management. Choices A, B, and C are common occurrences in postoperative clients and may not necessarily indicate a severe issue. Serosanguineous drainage on the surgical dressing is a normal finding in the immediate postoperative period. A temperature of 37.8°C (100°F) can be a mild fever, which is common postoperatively due to the body's response to tissue injury. Urine output of 75 mL in the past 4 hours may be within normal limits for a postoperative client, especially if they are still recovering from anesthesia.

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