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

ATI RN

ATI Exit Exam 2023

1. A nurse is caring for a client who has a new prescription for warfarin. Which of the following laboratory values should the nurse monitor to determine the effectiveness of the medication?

Correct answer: D

Rationale: The correct answer is D, International normalized ratio (INR). INR is used to monitor the therapeutic effect of warfarin, an anticoagulant medication. Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors. Monitoring the INR helps assess how well the medication is working to prevent blood clots. Choices A, B, and C are not specific indicators for monitoring the effectiveness of warfarin. Hemoglobin levels primarily assess the oxygen-carrying capacity of red blood cells, platelet count evaluates the clotting ability of blood, and PT measures the time it takes for blood to clot. While these values are important for overall health assessment, they do not directly reflect the anticoagulant effects of warfarin.

2. A nurse is preparing to teach a client about the use of a peak flow meter. Which of the following instructions should the nurse include?

Correct answer: A

Rationale: The correct instruction for using a peak flow meter is to place the mouthpiece in your mouth and blow out as quickly as you can. This action helps measure the peak expiratory flow of the client. Choice B is incorrect because exhaling slowly does not provide an accurate peak flow reading. Choice C is incorrect as taking a slow deep breath before blowing interferes with obtaining an accurate measurement. Choice D is incorrect as blowing at a steady rate for 3 seconds may not reflect the peak expiratory flow accurately.

3. A nurse is assessing a client who is 4 hours postoperative following a total hip arthroplasty. Which of the following findings should the nurse report to the provider?

Correct answer: B

Rationale: The correct answer is B: 'Heart rate of 88/min.' A heart rate of 88/min in a postoperative client can be an early sign of bleeding or other complications. It is essential to report this finding promptly to the healthcare provider for further evaluation and intervention. Choices A, C, and D are within normal ranges for a postoperative client and do not indicate immediate concern. A blood pressure of 118/76 mm Hg is normal, urinary output of 30 mL/hr may be adequate depending on the client's fluid status, and a hematocrit of 42% is within the acceptable range for a postoperative client. Therefore, they do not require immediate reporting.

4. A nurse is assessing a client who is 4 hours postpartum. Which of the following findings should the nurse report to the provider?

Correct answer: C

Rationale: The correct answer is C. A fundus that is deviated to the right may indicate a full bladder, which should be addressed postpartum. Choice A is incorrect because red lochia with small clots is expected during the early postpartum period. Choice B is incorrect as the fundus should be firm and midline, not at the umbilicus. Choice D is incorrect as perineal pain and swelling are common postpartum findings that do not require immediate reporting to the provider.

5. A nurse is caring for a client who has a pulmonary embolism. The nurse should identify the effectiveness of the treatment by observing which of the following?

Correct answer: B

Rationale: The correct answer is B because when a client reports feeling less anxious, it suggests that the treatment for a pulmonary embolism is effective. This is a good indicator of the client's overall well-being and response to treatment. Choices A, C, and D are incorrect because a chest x-ray revealing increased density in all fields, diminished breath sounds auscultated bilaterally, and ABG results showing specific values do not directly correlate with the effectiveness of treatment for a pulmonary embolism. While these assessments are important for monitoring the client's condition, the client's subjective report of feeling less anxious provides a more direct insight into the impact of the treatment.

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