Laboratory: | Hematology |
Test Name: |
PTT (PARTIAL THROMBOPLASTIN TIME) - (P)
Test Code:
APTT
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Clinical Information: |
Test performed at:
Health Sciences Centre, St. Boniface Hospital, and Westman Regional Hematology Labs |
Collection Devices: |
Preferred Device:
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Specimen Required: |
Blood: 1.8 mL
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Referral: |
Plasma: 1.5 mL
Send 1.5 mL (minimum volume 1.0 mL) of platelet poor citrated plasma in plastic aliquot tube frozen if testing cannot be completed with 4 hours of collection. Send on ice.
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Requisition: | |
Reference Values: |
26 - 38 seconds as of August 27, 2014
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Availability: |
Daily or Stat
Test must be approved by Hematologist or Hematopathologist unless patient is on heparin therapy including baseline aPTT prior to the start of UFH for peri-liver transplant patients, or is cord blood.
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See Also: | |
More Information: |