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Chromogenic Factor VIII

Tube Type = Light Blue Top

Tube Type

Test ID LAB5604
EPIC Order
 CHROMOGENIC FACTOR VIII
CPT Code(s) 85130
Group/Individual Test Individual
Laboratory CORE Laboratory
Tube Station 30 Routine: 888 STAT
Specimen Routine: 2.7 mL Blood / Light Blue Top Tube See Comments 
  Pediatric:  1.8 mL Blood Pediatric Light Blue Top Tube
Availability Routine:  24 Hours/Day
  STAT:  YES
Stability Unspun:  4 Hours
  Room Temperature:  4 Hours
  Refrigerated: NO
  Frozen: 14 days (plasma only)
Turnaround Time STAT: 

90 minutes
  Routine: 

3 Hours
Reference Range Normal: 

54-200%
  Critical: 

<10% of Normal
Comments
  • Deliver Immediately:
  • If more than 2 Factor Assays are ordered: 2 Light Blue Top Tubes need to be drawn.
  • Draw tube must be allowed to fill completely. Short draws will be rejected. 

Reviewed by J. Carr on November 19, 2025

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514