Specimen Requirements
Title
Factor V Activity
Specimen Requirement
Collect light blue top, tube must be filled. Gently invert 8 times immediately after collection, centrifuge light blue and transfer plasma to a screw top plastic vial, centrifuge plastic vial and transfer 1.0 mL plasma to a screw top plastic vial, indicate sample type on that plastic vial and send on dry ice.
Critical frozen.
Methodology
Photometric Clot Detection
Stability
Room temp/Refrigerated: Unacceptable, Frozen: 14 days
Reference Range
The reference range is determined by the performing laboratory and will show on the report.
Turnaround
4 days performed Tuesday, Thursday, Friday and Sunday
Clinical Use
This test measures coagulation factor V activity and may be used to help determine the cause of a prolonged prothrombin time (PT) or activated partial thromboplastin time (aPTT).
Test Code
F5AW