Difficulty: Medium
Average Score: 85%
Full-length
The nurse is caring for a client with a history of atrial fibrillation who is receiving warfarin (Coumadin) 5 mg PO daily. Which of the following laboratory results should the nurse report immediately?
Correct answer
A
Rationale
An INR of 3.5 is above the therapeutic range (2.0ÔÇô3.0), increasing bleeding risk. Options B, C, and D are normal.