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 …
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.
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 …
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.
Understanding the International Normalized Ratio (INR) Test
For most healthy individuals, the **normal INR range** is typically between 0.8 and 1.2. However, if you are on blood thinners, your target INR range may be higher—often between 2.0 and …
Prothrombin Time: Reference Range, Interpretation, Collection …
Oct 22, 2025 · Normal values include the following [1] : Possible critical values are as follows [1] : Studies confirm that PT and INR reference intervals can vary with age and sex, with some …
Understanding INR Levels: What You Should Know About Blood …
Jun 16, 2025 · For healthy individuals not taking any blood thinners, the normal INR value typically ranges from 0.85 to 1.2. This indicates that the blood is clotting in a balanced, natural …
Understanding INR Levels and Prothrombin Time Tests - GoodRx
Mar 16, 2023 · For most people who take warfarin, the target INR is between 2 and 3, or 2.5 to 3.5, depending on the indication. But that number often rises over the target range — even …
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 …
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 …