The nurse identifies a client's dose of warfarin is 10 mg PO daily, but the client's current INR is 3.5 (therapeutic range: 2.0-3.0). What is the nurse's priority action?

Question: The nurse identifies a client's dose of warfarin is 10 mg PO daily, but the client's current INR is 3.5 (therapeutic range: 2.0-3.0). What is the nurse's priority action?

Answer options:

• Administer the warfarin as prescribed and recheck INR in 24 hours. ✅ Notify the prescriber immediately regarding the INR result and dose.
• Administer a lower dose of warfarin, such as 5 mg, based on protocol.
• Educate the client about foods high in Vitamin K to avoid.

Correct answer: Notify the prescriber immediately regarding the INR result and dose.

Explanation: An INR of 3.5 is above the therapeutic range, indicating an increased risk of bleeding. The nurse's priority is to immediately notify the prescriber before administering the medication to prevent a potential medication error and patient harm.