| DESCRIPTION |
This is the reference to the Quick Order Dialog for the INR (International
For example, a person taking the anticoagulant ("blood thinner") warfarin
(brand name: Coumadin) might optimally maintain a prothrombin time (a "pro
time" or PT) of 2 to 3 INR. No matter what laboratory checks the
prothrombin time, the result should be the same even if different
thromboplastins and instruments are used. This international
standardization permits the patient on warfarin to travel and still obtain
comparable test results.
Normalized Ratio) for Prothrombin Times.
INR: International normalized ratio, a system established by the World
Health Organization (WHO) and the International Committee on Thrombosis
and Hemostasis for reporting the results of blood coagulation (clotting)
tests. All results are standardized using the international sensitivity
index for the particular thromboplastin reagent and instrument combination
utilized to perform the test.
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