| Laboratory: | Hematology |
| Test Name: |
PTT (PARTIAL THROMBOPLASTIN TIME) - (P)
Test Code:
APTT
|
| Clinical Information: |
Test performed at:
Health Sciences Centre, St. Boniface Hospital, and Westman Regional Hematology Labs |
| Collection Devices: |
Preferred Device:
|
| Specimen Required: |
Blood: 1.8 mL
|
| 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.
|
| Requisition: | |
| Reference Values: |
26 - 38 seconds as of August 27, 2014
|
| 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: |