The nurse is preparing to administer warfarin (Coumadin), an anticoagulant. The client’s current laboratory values are as follows: Which intervention should the nurse implement? 1. Question...

The nurse is preparing to administer warfarin (Coumadin), an anticoagulant. The client’s current laboratory values are as follows:

Which intervention should the nurse implement?

1. Question administering the medication.

2. Prepare to administer protamine sulfate.

3. Notify the health-care provider to increase the dose.

4. Administer the medication as ordered.