Monitoring Anticoagulation at Home

Monitoring Anticoagulation at Home

Are there any options for do-it-yourself monitoring?

While most people on warfarin or Coumadin® go to an anticoagulation clinic to monitor and test their blood’s clotting time, some people are able to do their own testing and monitoring from home. People who do so may feel a greater sense of control and ability to take part in managing their own care. This option is especially valuable for people who maintain a full schedule, enjoy traveling, or have other reasons that make it difficult to get to the clinic. The need for testing and monitoring at home only applies to people taking warfarin or Coumadin® for stroke risk reduction using anticoagulation medication; NOACs do not require testing.

Who is a good candidate for at-home anticoagulation monitoring?

If you have been diagnosed with atrial fibrillation and have been taking warfarin or Coumadin® for at least 90 days, you may be eligible to begin testing your INR or clotting time (also called Prothrombin time) from home. If you’re interested and willing to manage your part of the process, your healthcare provider can submit a request to authorize you to complete your testing and monitoring requirements from home. From there, you’ll work with your insurance provider or national healthcare benefits program to arrange for any necessary payments and connect you with a monitoring company that will provide the equipment and teach you the steps for timely and accurate measurement.

What is the process for at-home monitoring?

Most medical coverage options allow for weekly or bi-weekly testing, and the testing must usually be communicated back to the monitoring company who then communicates it to your doctor so that you can maintain a prescription for your medication. The monitoring company will alert your healthcare provider if results of your blood clotting time are out-of-range so your doctor can promptly adjust your dosage. This regular communication also allows the monitoring company to track your usage and send additional supplies when your usage data indicates you should be running low, which will save you time and energy.

People who monitor at home will likely want to create a convenient place for storing supplies, testing, and reporting results. During training, your monitoring company may help you work out a system to remind yourself when it’s time to test.

We encourage you to talk about your experience and share tips and insights with other users at our online forum.

Learn more about clot times, lab testing, and what your ratio means by visiting our Anticoagulation Lab section of AFib Town.

Recent Discussions From The At Home Forum
Cjnobata avatar

I just found this group. I have had 2 ablation last year and this month my AFib has returned. Have a LEE scheduled for next week. My cardiologist will probably suggest another but I am thinking to wait awhile. My question is this: has anyone noticed that drinking just water sets it off. Especially if I gulp it but also some slow drinking. Not ice water , just tap.  I am hesitate to drink and need the water to stay hydrated.


Gene157 avatar



My AF is now coming back with flutter at the same time. Really dragging my tail. Taking Sotalol 80mg 2x a day. One option out is to have the VA node destroyed and the  heart controlled by the pacemaker only, sort of a nuclear approach. No return after that. What is it called ?


Anyone had that done?





Ralewis45 avatar

Hi, I've been on flecinaid 50 mg twice daily for the past couple of weeks along with diltiazem Sr 120 mg once a day.  I've had no Afib episodes since beginning this regime.  However, I do notice some chest tightness when out walking which is what I do for exercise.  Has anyone else had similar experiences with flecinaid?  Should I ask my cardiologist to put me on a monitor for a couple of weeks?

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