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Prothrombin Time (PT)
Investigation Result Units Biological Reference Interval

PROTHROMBIN TIME : TEST 17.7 Seconds 11 - 13.5
PROTHROMBIN TIME: CONTROL 13.5 Seconds
TEST / CONTROL (RATIO) 1.31
CONTROL / TEST (INDEX) 0.76
I.N.R. VALUE 1.34 0.8 - 1.2

Sample type : Citrated plasma. Method : Photo Optical Clot Detection. Note : Prothrombin time (PT) is the test of choice for monitoring patients on oral anticoagulants.The international normalized ration (INR) is the recommended method for reporting prothrombin time results for control of oral anticoagulation. It is now widely accepted that the anticoagulation level and the appropriate drug regimen are best determined on the basis of the INR. INR 2.0 - 3.0 INR 3.0 - 4.0 Prophylaxis of venous thrombosis (high risk surgery) Mechanical prosthetic valves (high risk) Treatment of venous thrombosis or pulmonary embolism Prevention of recurrent myocardial infarction. Prevention of systemic embolism:-Tissue heart valves, valvular heart disease, acute myocardial infarct, valvular heart disease, atrial fibrillation Disclaimer : 1) The above result relate only to the specimens received and tested in laboratory and should be always correlate with clinical findings and other laboratory markers. 2) Improper specimen collection, handling, storage and transportation may result in false negative/Positive results.

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