The normal ranges for PT/INR results are: 11 to 13.5 seconds. INR of 0.8 to 1.1. INR of 2.0 to 3.0 if you’re taking warfarin. (There are some conditions for which a higher or lower target PT …

Mar 16, 2023 · A “normal” INR is between 0.8 and 1.1 if you’re not taking any medications that prevent your blood from clotting (sometimes called “blood thinners”). People who take warfarin …

Aug 21, 2025 · For individuals on medication, regular INR monitoring ensures effective prevention or management of blood clots. For healthy individuals not taking medications that affect blood …

Dec 3, 2024 · In people without health conditions, an INR of 1.1 or below is considered typical. An INR range of 2.0 to 3.0 is generally an effective therapeutic range for people taking warfarin for …

2 days ago · Quick Interpretation Guide Normal Range: 10-13.5 seconds; INR of 0.8-1.1 (if not on anticoagulants) Slightly Elevated/Low: PT 13.5-16 seconds or INR 1.1-1.5 — may indicate …

A normal PT-INR range for people who take warfarin is 2-3 but can vary from patient to patient. Patients who tend to clot more easily may have an INR target range of 3-4.

Nov 21, 2025 · For individuals not taking anticoagulant medication, the standard or “non-therapeutic” INR range is typically between 0.8 and 1.2. A result within this range indicates the …

Levels that are too high can cause dangerous clots to form in your arteries or veins. A PT/INR test helps find out if your blood is clotting normally. It also checks to see if a medicine that prevents …

Learn about the International Normalized Ratio (INR) test, its role in blood clotting, normal INR ranges, and why INR monitoring is crucial for patients on blood thinners like warfarin.

Jan 19, 2024 · For people on warfarin, the reference range of values for PT/INR is 2 to 3 seconds. 3. High and low INR values are interpreted as follows: Low INR values mean that you may be …