A patient who is taking warfarin (Coumadin) 5 mg daily has an international normalized ratio (INR) of 2.5. It is time to administer the next dose of Coumadin. What should the nurse do?
a. Notify the physician STAT.
b. Hold the dose of Coumadin.
c. Prepare to administer vitamin K.
d. Administer the daily Coumadin as ordered.
ANS: D
The INR therapeutic range is 2 to 3, so 2.5 is where it should be, and the Coumadin can be administered. A, B, and C would be appropriate for an elevated INR.
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