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Test your blood anticoagulation level in your own home

What is PT/INR Home Testing?

As a Coumadin® patient you now have the option of checking your PT/INR at home, at anytime. Testing at home is a convenient alternative to going to your doctor’s office to check your INR levels, and frequent self-testing has been proven to reduce the risk of bleeding and clotting. Your doctor will continue to review your PT/INR test results and make any required changes to your dose. 1,2

How PT/INR Home Testing Works

Testing your PT/INR at home is easy. We provide you with the same INR Monitor and test strips that doctors and nurses use in their offices. After you receive simple one-on-one training from your doctor, nurse or from one of our certified trainers, you begin home testing.


Step 1:
Test yourself at home at the frequency prescribed by your doctor, usually weekly.



Step 2:
Send us your INR result. You can call our patient customer service line, use our automated phone system, or use our website. We’ll teach you each method, but you decide what’s easiest for you.

Step 3:
We send your results to your doctor or nurse who will contact you with changes to your Coumadin dose, if any.




We’re with you every step of the way and will even mail you testing supplies when needed.
1.Kortke H, Minami K, Breymann T, et al.INRself-management after mechanical heart valve replacement: ESCAT. Z Kardiol.2001;90[6] 118-124.
2. Beyth RJ, Quinn L, Landefeld CS. A Multicomponent Intervention To Prevent Major Bleeding Complications in Older Patients Receiving Warfarin. Ann Intern Med. 2000;133:687-695