The nurse caring for a patient receiving heparin intravenously for a diagnosis of pulmonary emboli is evaluating the patient's laboratory data and recognizes that a therapeutic range for the international normalized ratio (INR) is:
A) 0.5 to 1.0
B) 1.0 to 1.5
C) 1.5 to 2.0
D) 2.0 to 2.5
Ans: D
Feedback: The INR therapeutic range for heparin is 2.0 to 2.5.
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