- YFVACT
Factor V, Activity
Specimen:
Test Code
YFVACT
Specimen Name
Factor V, Activity
Collect
2-Blue Top (Na-Citrate)
Submit
2-1 mL (Min: 0.5 mL) aliquots Plasma Frozen (Whole Blood, Ambient if transported to the lab within 4 hours)
Special Handling
If blue top tubes are not transported to the testing lab within 4 hours of collection, prepare platelet poor plasma aliquots and freeze the aliquots. Separate specimens must be submitted when multiple tests are ordered.
Keep aliquots frozen during transport. Fill light blue-top tubes as far as vacuum will allow and
mix by gentle inversion five to six times. With plastic transfer pipette, remove 3/4 of the plasma. Do not disturb the plasma near the red cells. Pipet from the top of the plasma portion. Place plasma into plastic tubes. Examine remaining cells for for clots. Cap and freeze the plasma immediately. Label the tube with patient name and indicate 'platelet poor citrated plasma'. Mimimum of 0.5 mL per aliquot. Two aliquots per coagulation assay should be sufficient.
Keep aliquots frozen during transport. Fill light blue-top tubes as far as vacuum will allow and
mix by gentle inversion five to six times. With plastic transfer pipette, remove 3/4 of the plasma. Do not disturb the plasma near the red cells. Pipet from the top of the plasma portion. Place plasma into plastic tubes. Examine remaining cells for for clots. Cap and freeze the plasma immediately. Label the tube with patient name and indicate 'platelet poor citrated plasma'. Mimimum of 0.5 mL per aliquot. Two aliquots per coagulation assay should be sufficient.
Rejection Criteria
Serum. EDTA plasma, clotted or hemolyzed specimens.
Stability
Ambient 4 hours; Refrigerated Unacceptable; Frozen 2 weeks
Methodology
Electromagnetic Mechanical Clot Detection
Performed
Sunday - Saturday
Reported
2-4 days
CPT Codes
- 85220
Components
—
Additional Information
Evaluate for possible factor V deficiency.
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Common Lab Definitions
- Serum
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