Final answer:
The nurse should administer the medication as ordered since the client's INR is within the therapeutic range. Assessing the client for abnormal bleeding is also necessary.
Step-by-step explanation:
If a patient with a mechanical valve replacement has an INR of 2.7, the nurse should administer the medication as ordered. Warfarin (Coumadin) is an oral anticoagulant commonly used to prevent the formation of blood clots. An INR of 2.7 falls within the therapeutic range for this medication, indicating that the client's blood is clotting at an appropriate rate. Therefore, there is no need to administer Vitamin K or hold the medication.
Assessing the client for abnormal bleeding is appropriate, as it is a common side effect of anticoagulant therapy. By monitoring for signs of bleeding, such as bruising, nosebleeds, or blood in the stool, the nurse can ensure the client's safety.