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ID:229 INR (International Normalised Ratio)
Search Links: General Info : Protocols : LabTestsOnline

DescriptionThe International Normalised Ratio (INR) is derived from the prothrombin time and is a measure of the extrinsic pathway of coagulation.
IndicationUsed for monitoring the dose of Warfarin and other oral anticoagulant therapies
Additional InfoPlease note: test can only be added to samples within 24 hours of collection
Concurrent Testsna
Dietary RequirementsNone
InterpretationInterpreted against suggested therapeutic ranges depending on clinical indications.

DepartmentHaematology
SampleBlood
TubeCoagulation
Tube Picture
Collection ConditionsNo restrictions - fill tube to line
Min. Vol
Freq.Daily

Ref. Range (Male)
Ref. Range (Female)
Ref. Range (Paed)
Ref. Range NotesInterpreted against suggested therapeutic ranges depending on clinical indications.
Unitsratio
IP Acute TATRefer to Website
IP Routine TATRefer to Website
GP Acute TAT- Contact Laboratory
GP Routine TATRefer to Website
Turnround Comment

Originally edited by : RJAR. Review due on 15/03/2019 15:17:43. Published By RJAR on 15/03/2018 15:17:43.