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  1. Prothrombin Time (PT/INR) Test - Cleveland Clinic

    Apr 29, 2024 · 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 …

  2. Understanding INR Levels and Prothrombin Time Tests - GoodRx

    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 have higher …

  3. What Is a Normal INR Level and Its Target Ranges?

    Aug 21, 2025 · For healthy individuals not taking medications that affect blood clotting, a normal INR level typically falls between 0.8 and 1.2. This range indicates expected clotting time.

  4. PT, PTT, and INR Blood Tests: Purpose and Normal Ranges

    Jan 19, 2024 · Find out what PT/INR and PTT blood tests are, what the results mean, and how what you do can affect the outcomes of these blood tests.

  5. Prothrombin time test - Mayo Clinic

    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 certain …

  6. What is a Blood Test INR and Why It’s Done - Centers Urgent Care

    Below is an explanation of what constitutes a normal INR range and the significance of both high and low INR levels. The normal INR range varies depending on whether the individual is on anticoagulant …

  7. INR Levels: Your Guide to Blood Clotting & Warfarin - INR

    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.

  8. What is a normal INR range, and does it vary by condition?

    The normal INR range typically falls between 2.0 and 3.0, but it can vary depending on the specific medical condition being treated. Patients with certain conditions, like atrial fibrillation or deep vein …

  9. Understanding the International Normalized Ratio (INR) Test

    For most people, a normal INR range falls between 0.8 and 1.2. However, if you are taking blood-thinning medications like warfarin, your target INR range is typically higher, usually between 2.0 and …

  10. International Normalized Ratio | OSF HealthCare

    The international normalized ratio (INR) is a standardized number that's figured out in the lab. If you take blood thinners, also called anticlotting medicines or anticoagulants, it may be important to check your …