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Mixing Studies, Elevated PTT
MessageSRHC Clients
Send sample to lab ASAP--sample is stable only for 2 hours refrigerated.
TUBE MUST BE FULL
Patient should be off Coumadin 2 weeks or Heparin 2 days prior to testing
NOTE:
Coagulation testing 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 venipuncture. Please document on the request or labeled sample.
Send sample to lab ASAP--sample is stable only for 2 hours refrigerated.
TUBE MUST BE FULL
Patient should be off Coumadin 2 weeks or Heparin 2 days prior to testing
NOTE:
Coagulation testing 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 venipuncture. Please document on the request or labeled sample.
Test Code
FID2
Alias/See Also
Substitution studies for PTT
Transport Container
1 blue tube FULL
Specimen Stability
2 hrs if refrigerated
Send to Lab ASAP
Send to Lab ASAP
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Clotted
Hemolysis
Hemolysis
Methodology
Mechanical clot detection
Report Available
8 hrs
Reference Range
See patient report
