Specimen Requirements
Title
Factor XII Activity, Clotting
Specimen Requirement
Collect a light blue sodium citrate tube, gently invert 10x, centrifuge and transfer 1.0 mL plasma a screw top plastic vial, indicate plasma/light blue on plastic vial and send frozen on dry ice.
Critical Frozen.
Methodology
Clotting
Stability
Room temp: 4 hours, Refrigerated: Unacceptable, Frozen: 14 days
Reference Range
The reference range is determined by the performing laboratory and will show on the report.
Turnaround
3-5 days performed Monday-Saturday
Clinical Use
Test Code
FXII