A prothrombin time test with an INR (PT/INR) measures how long it takes blood to clot. It's used to diagnose and manage bleeding and clotting disorders.

A prothrombin time (PT or PT/INR) test measures how quickly your blood clots. The results may be in seconds or, more commonly, a calculation called the International Normalized Ratio (INR).

The Acelis Connected Health (ACH) remote International Normalized Ratio (INR) Monitoring Program enables you to self-test and report your INR at home, or wherever it’s convenient for you.

You’ll usually need to have your INR tested at a lab or clinic a few times before switching to home testing. Before you start testing on your own, your doctor will need to make sure that your warfarin …

Learn how to safely monitor your INR at home while on warfarin—discover self-testing guidelines, benefits, monitoring tools, and how to work with your healthcare provider to stay within your …

Nov 4, 2025 · The INR (International Normalized Ratio) blood test is a standardized way to measure how long it takes your blood to clot. It’s derived from the Prothrombin Time (PT) test, which evaluates …

Dec 10, 2025 · Safely monitor your blood clotting time (INR) from home. Get the full process: preparation, step-by-step testing, and communicating results accurately.

Your doctor uses the INR to know whether your anticlotting medicines are at the right dose or if you need to change the dose. Newer anticlotting medicines don't need INR monitoring and dose changes …

Forget worrying about your tech-savviness or medical experience—our face-to-face training will teach you how to test your PT/INR values successfully. Our tests show quick results, allowing for access to …

Oct 2, 2025 · Prothrombin time (PT) is a blood test that measures how long it takes blood to clot. A prothrombin time test can be used to check for bleeding problems. PT is also used to check whether …