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Factor VIII Assay

Centralized Core Laboratory : Hematology

Test ID/Workstation :
FVIII ACOAG
Specimen Type:
Blood
Tube Type:
Blue top (sodium citrate) tube
Collection Volume:
2.7 mL (minimum 1.8 mL) Must use appropriate sodium citrate tube based on volume of blood drawn (1.8 mL or 2.7 mL tube)
Cause for Rejection:
Samples hemolyzed, clotted, diluted with IV fluid; contam with heparin; improperly filled; received > 1 hr after drawn
Storage:
Frozen
Availability:
Daily (0700-1500)
Methodology:
Photometric/Turbidometric
Special Instructions:
Call CCL in advance to schedule test. Indicate the time replacement therapy was administered, amount & type of therapy given, whether the specimen was drawn pre-treatment or post-treatment and the time drawn. Indicate if a specimen has been drawn from an arterial line or from a line that has been rinsed with heparin. If collected at an offsite location, send by a STAT Courier to Hospital lab
Lab/Phone:
330-543-8416
TAT:
4 hours
Additional Info:
Reference range: 50-170%
CPT Code:
85240
Synonyms:
Antihemophiliac Factor (AHF)