INR, International Normalised Ratio

Name INR
Tube TypeBlue (Sodium Citrate)
Reporting UnitsN/A
Reference RangePT 13 – 16sINR 0.9 – 1.1
AvailabilityNDDH (24/7)
Target turnaround time2 Hrs
Special requirements & notes
Patient preparationN/A
Volume required1 tube, must be full.
If delayed transport to lab, store:In refrigerator 2 – 8oC.
Factors affecting result interpretation
Time limit for add on test24 Hours
Pathology disciplineHaematology
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Last updated: May 28, 2020