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Laboratory: Hematology
Test Name:
Test Code: DHWU
Clinical Information:
Clinical Hematology consult required prior to collection.
Test performed at HSC Haemostasis Laboratory (Hematopathology)
Collection Devices:
Specimen Required:

Plasma: 8.0 mL
Pediatric Plasma: 4.0 mL

Na Citrate Tubes:  Centrifuge according to lab's current process for coagulation sample.  Remove plasma with transfer pipette.  Place in plastic tube and re-centrifuge, capped.  Aliquot into four (4) plastic tubes, cap, and indicate "spun x 2" on labels.  Freeze immediately at -20°C.  Transport frozen on ice.
EDTA Tubes:  Send at room temperature, stable for 24 hours.
Reference Values:
See report
By Prior Arrangement Only
Hematopathologist approval required
See Also:
More Information:
Test performed Monday-Friday 0745-1600, however, referred-in samples in Na Citrates tubes may be sent  frozen to the HSC lab at any time, attention: Haemostasis Bench.

Note:  EDTA (for platelet count) stable for 24 hours.  If unable to transport EDTA within 24 hours, referring lab to process CBC and send copy of analyzer results with NaCitrate tubes.

Note: Closure time assay only stable for 4 hours at room temperature recommended collection at HSC