Prothrombin time (PT) of a patient is 26, control PT is 13 seconds and sensitivity index is 1.41. What will be the INR of this patient -

Ans. is d None o A standardized system called the International Normalized Ratio (INR), which is the ratio of prothrombin time in patient to that in normal non-anticoagulated person, has been developed by WHO and it is based on the use of human brain thromboplastin.