which of the following lab values indicates a patient on warfarin is at a therapeutic level
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Nursing Elites

ATI RN

ATI RN Comprehensive Exit Exam

1. Which of the following lab values indicates a patient on warfarin is at a therapeutic level?

Correct answer: C

Rationale: An INR of 2.5 indicates a therapeutic level for a patient on warfarin. The INR (International Normalized Ratio) is the most accurate way to monitor and adjust warfarin doses. An INR of 1.1 (Choice A) is below the therapeutic range, indicating a need for an increased dose. PT (Prothrombin Time) of 12 seconds (Choice B) is not specific for warfarin therapy monitoring. Platelet count (Choice D) is not directly related to monitoring warfarin therapy.

2. 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.

3. What is the priority nursing assessment for a patient with chronic kidney disease?

Correct answer: A

Rationale: The correct answer is to monitor serum creatinine. In patients with chronic kidney disease, monitoring serum creatinine is crucial as it reflects kidney function. This assessment helps healthcare providers in evaluating the progression of the disease and adjusting treatment plans accordingly. Monitoring blood pressure (choice B) is essential in managing chronic kidney disease, but monitoring serum creatinine takes precedence. Monitoring urine output (choice C) and potassium levels (choice D) are also important aspects of managing chronic kidney disease, but they are not the priority assessment compared to monitoring serum creatinine.

4. A healthcare professional is reviewing the medical record of a client scheduled for a CT scan with contrast media. The healthcare professional should identify which of the following findings as a contraindication to the procedure?

Correct answer: D

Rationale: The correct answer is D, a history of allergy to shellfish. A known allergy to shellfish is a contraindication for the use of contrast media in a CT scan due to the potential risk of an allergic reaction, which could be severe and life-threatening. Choices A, B, and C are not contraindications to the procedure. A normal white blood cell count, urine specific gravity within the normal range, and a history of asthma do not typically interfere with the administration of contrast media for a CT scan.

5. Which lab value should be monitored for a patient on warfarin therapy?

Correct answer: A

Rationale: The correct answer is to monitor INR for a patient on warfarin therapy. INR monitoring is crucial as it helps assess the therapeutic effectiveness and safety of warfarin. INR stands for International Normalized Ratio, and it measures the blood's ability to clot. Monitoring potassium levels (Choice B) is not specific to warfarin therapy. Monitoring platelet count (Choice C) is important but not the primary lab value for assessing warfarin therapy. Monitoring sodium levels (Choice D) is not directly related to warfarin therapy.

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