What is the normal range for INR (International Normalized Ratio)?

The normal range for the International Normalized Ratio (INR) is generally considered to be between 0.8 and 1.2. This measurement is crucial for monitoring patients on anticoagulant therapy, particularly those taking warfarin, as it helps to ensure that blood clotting is maintained within a safe range. An INR below this level may suggest an increased risk of clotting, while a higher INR indicates a greater risk of bleeding. The stated range of 0.81-1.2 min aligns with the accepted norms for individuals not on anticoagulant therapy, reflecting appropriate coagulation levels.

Other potential ranges involve different patient scenarios; for instance, therapeutic INR ranges for patients on anticoagulant treatment often fall between 2.0 to 3.0, which is not indicated as normal for the general population, but essential for a specific therapeutic context. Understanding these distinctions is crucial for practical nurses when managing patient medications and ensuring safe practices in anticoagulation therapy.