Various websites, including Care Clinical Research, have charts showing standard, abnormal, normal and therapeutic INR levels. INR levels, which stand for international normalized ratio, are used to determine a person's ... More » Health Medical Ranges & Levels

The international normalized ratio ranges between 0.8 and 1.1 for a person who is not taking anticoagulant medication, explains MedlinePlus. Patients on blood-thinning medicines have a target international normalized rat... More »

Normally, INR range should be between 2.0 to 3.0, according to Mayo Clinic. In some situations a higher INR range is best. It is normal for INR ranges to fluctuate to some degree, and changing the dosage of medication ma... More » Health Medical Ranges & Levels

Following the discovery of abnormal International Normalized Ratio, or INR, levels, the next steps depend on the patient and her immediate risk of excessive bleeding. Treatments may include changing the dose of the antic... More » Health Medical Ranges & Levels

Normal international normalized ratio, or INR, levels for individuals who are not on anticoagulant medication range between 0.9 and 1.1. Patients who are on blood thinning medications typically have elevated INR levels b... More »

The measurement of prothrombin time and INR levels indicate whether a patient is responding appropriately to warfarin, a blood-thinning medication, according to Lab Tests Online. Warfarin requires careful monitoring to p... More »

A normal INR is 0.8 to 1.1 for people not taking blood thinners and 2.0 to 3.0 for people taking warfarin and other blood-thinning drugs, according to MedlinePlus. INR stands for international normalized ratio. More »