ATI LPN Mental Health Exam IV

Extract:

Question 1 of 5

A nurse on a telemetry unit is reviewing the laboratory results for a client who has atrial fibrillation and is taking warfarin. Which of the following laboratory values should the nurse report to the provider?

A. Hemoglobin (Hgb): 16 g/dL B. Prothrombin Time (PT): 45 seconds C. Activated Partial Thromboplastin Time (aPTT): 36 seconds D. Platelets: 190,000/mm

Correct Answer: B

Rationale: PT of 45 seconds (normal 11–13.5 seconds) indicates excessive anticoagulation (therapeutic 1.5–2 times normal), risking bleeding on warfarin. Hgb (16 g/dL, 13.8–17.2 g/dL), aPTT (36 seconds, 21–35 seconds), and platelets (190,000/mm, 150,000–450,000/mm) are normal. PT requires urgent reporting.

Question 2 of 5

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Question 5 of 5

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ATI LPN Mental Health Exam IV | Nurselytic

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