Journal of the American Dental Association, Vol 128, Issue 8, 1121-1122
Copyright © 1997 by American Dental Association
Using the international normalized ratio to standardize prothrombin time
R Stern,
V Karlis,
L Kinney,
and
R Glickman
New York University/Bellevue Hospital Center, New York City, USA.
The international normalized ratio, or INR, was introduced in 1983 by the World Health Organization, or WHO, Committee on Biological Standards to more accurately assess patients receiving anticoagulation therapy. The INR mandates the universal standardization of prothrombin time. This article describes the method used to calculate INR, as well as its clinical relevance to the practice of dentistry.