- 24 Feb 2017, 08:58
#2057
International normalized ratio (INR) is a calculation made to standardize prothrombin time. INR is based on the ratio of the patient's prothrombin time and the normal mean prothrombin time. Prothrombin time is a test to learn how fast the blood clots in patients receiving oral anticoagulant medication. The below INR chart will explain the INR Ranges in Detail.

