
If A Patient Has A Normal INR But The Doctor

Question: If a patient has a normal INR but the doctor thinks they have an INR over 12 (lab error) and gives them vitamin K to reverse warfarin, how can you reverse the effects of the vitamin K?
Brief Answer:
By increasing dose of warfarin
Detailed Answer:
Hi
Thanks for your query.
In that case, we need to check the INR post vit k. Depending upon that we need to increase the dose of warfarin for 1-3 days with frequent checking of INR.
After stabilization, we can go back to previous dose.
Hope this helps.
Regards
By increasing dose of warfarin
Detailed Answer:
Hi
Thanks for your query.
In that case, we need to check the INR post vit k. Depending upon that we need to increase the dose of warfarin for 1-3 days with frequent checking of INR.
After stabilization, we can go back to previous dose.
Hope this helps.
Regards
Above answer was peer-reviewed by :
Dr. Vaishalee Punj


If the lab result is on the wrong patient, and the patient who got the vitamin K is not on warfarin at all, would you give warfarin to stop clotting? Is there a clotting risk with a high dose of vitamin K?
Brief Answer:
Not required
Detailed Answer:
In that case, nothing needs to be done. No excess clotting risk will be there.
Not required
Detailed Answer:
In that case, nothing needs to be done. No excess clotting risk will be there.
Note: Do you have more questions on diagnosis or treatment of blood disorders? Ask An Expert/ Specialist Now
Above answer was peer-reviewed by :
Dr. Nagamani Ng

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