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HelpTest Code LAB306 Factor VIII (8) Assay
Additional Codes
CF VIII
Collection:
Specimen: Blood
Container: Blue Top Tube with 3.2% (0.109 M) buffered Sodium Citrate anticoagulant only
Specimen Volume: 3.5 mL Must be filled to arrow (Greiner tube Black Disk) or line (BD)
Pediatric Collection: 2.0 mL Must be filled to arrow (Greiner tube White Disk) or line (BD)
Notes:
- Samples not filled properly will be rejected (over or under filled).
- If the patient's hematocrit is >55%, call Lab Client Services at 792-0707 to obtain an anticoagulant adjusted tube.
- For collection information and guidance refer to MUSC Laboratory Services Hemostasis / Coagulation Collection Guideline.
Stability:
Room Temperature: 4 hours Whole Blood
Refrigerated: 4 hours Whole Blood
Frozen at or below -20°C: 2 weeks
Note: Frozen samples must be platelet poor plasma aliquoted from primary tube. Label as Na Citrate or blue top plasma.
Turnaround Time (TAT):
STAT: 2 HOURS
Routine: Batched Monday - Friday at 0800 and 1200
Test Availability:
Daily / 0800 and 1200 / Available STAT (OR - Transplant, ER)
Reference Interval:
50 – 150 % activity
Interpretive Data:
Reference ranges for infants less than or equal to 30 days are for full term healthy infants only. Call the Coagulation Lab to obtain reference values for premature healthy infants.
Performing Lab Section:
COAGULATION / UMC MAIN LABORATORY