Order Code: 1502 Get Requisition Form
C4 levels may be useful in distinguishing systemic activation of the classical versus alternative complement pathways.
Also Known As
- Complement Protein
- Compliment Protein 4
Atypical Hemolytic Uremic Syndrome
Serum (Red Top - no serum separator)
Two 2 ml aliquots
Minimum / Pediatric Volume
One 2 ml aliquot
Additional Sample Information
Sample should be spun down, taken off the clot, and frozen within 2 hours of draw. Send on dry ice. Frozen serum stable up to 6 months. Avoid freeze/thaw cycles.
New York State Approval