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PT and INR
MessageSRHC Clients:
Full tube required. Correct anticoagulant to blood ratio is crucial for accurate results.
Transport to SRH lab same day at room temperature.
Coagulation work cannot be collected from arterial lines, unless specifically instructed to do so by the physician. If so instructed, document
this on the requisition or the labeled sample.
Draw from the opposite arm on a patient that is receiving a heparin drip. If it is absolutely necessary to draw the sample from the same arm(area) as the drip, the fluids must be turned off for 15 minutes prior to venipunture. Please document on the request or labeled sample.
Full tube required. Correct anticoagulant to blood ratio is crucial for accurate results.
Transport to SRH lab same day at room temperature.
Coagulation work cannot be collected from arterial lines, unless specifically instructed to do so by the physician. If so instructed, document
this on the requisition or the labeled sample.
Draw from the opposite arm on a patient that is receiving a heparin drip. If it is absolutely necessary to draw the sample from the same arm(area) as the drip, the fluids must be turned off for 15 minutes prior to venipunture. Please document on the request or labeled sample.
Test Code
PTI
Alias/See Also
Prothrombin Time and INR
PTI
PTI
CPT Codes
85610
Preferred Specimen
1 blue tube full
Transport Container
1 blue tube full
Specimen Stability
24 hrs room temp or refrigerated
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Tube not full
Hemolysis
Clotted
Methodology
Mechanical clot detection
Setup Schedule
Daily
Report Available
8 hrs
Reference Range
See patient report
