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

    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 range is …

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

    Aug 21, 2025 · Decipher normal INR levels and target ranges. Understand how to monitor and maintain your blood clotting for better health.

  3. 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 …

  4. Your Guide to INR Levels: What It Means, Why It’s Important

    What is a normal INR range? 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. …

  5. Prothrombin time test - Mayo Clinic

    Dec 3, 2024 · An INR range of 2.0 to 3.0 is generally an effective therapeutic range for people taking warfarin for certain conditions. These conditions include atrial fibrillation or a blood clot in the leg or …

  6. Understanding the International Normalized Ratio (INR) Test

    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.

  7. Understanding INR Levels and Prothrombin Time Tests - GoodRx

    Mar 16, 2023 · INR levels are a measure of how long it takes for a person's blood to clot. Understand your normal range and what high INR levels can mean for your health.

  8. Prothrombin Time Test and INR (PT/INR) - MedlinePlus

    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.

  9. 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.

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

    Interpreting INR Results Understanding the meaning behind INR (International Normalized Ratio) results is crucial for managing a patient’s health, particularly for those on blood-thinning medications or with …