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HelpTest Code LAB306 Factor VIII Activity Assay
Department
HEMATOLOGY
Collection Requirements
Must be a full draw.
Mix thoroughly immediately after collection.
Primary Collection Container
Blue 2.7 mL (Citrate)
Transport
Platelet-poor plasma frozen
Preferred Transport Temperature
Frozen
Processing
Mix tube thoroughly.
Centrifuge at 3300 rpm for 20 minutes.
Stability
Ambient: Unacceptable
Refrigerated: 2 hours
Frozen: 30 days
Minimum Testing Volume
2.7 mL
Reference Range
80-120%
Methodology
Turbidimetric Clot Detection
ACL Top
Performed
Sunday – Saturday
7:00 am – 2:00 pm
Reported
As completed
CPT Codes
85240
Unacceptable Conditions
Hemolyzed, clotted, short draw, non-frozen and serum specimens.