Complement C4 (C4)

Message
SRHC Clients:
  •  1 yellow top
  • Overnight fasting is perferred
  • Transport to SRHC lab within 8 hours


Test Code
C4


Alias/See Also
C4
Complement C4


CPT Codes
86160

Preferred Specimen
1 yellow top


Patient Preparation
Overnight fasting is perferred

Minimum Volume
0.5 mL


Other Acceptable Specimens
1 yellow top or 1 red top


Transport Container
1 yellow top


Transport Temperature
Refrigerated


Specimen Stability
Refrigerated: 7 days


Methodology
immunoturbidimetric

Setup Schedule
Daily


Report Available
4-8 hours


Reference Range
See patient report


Clinical Significance
Decreased C4 level is associated with acute systemic lupus erythematosis.glomerulonephritis, immune complex disease, cryoglobulinemia, cogenital C4 deficiency and generalized autoimmune disease.


Performing Laboratory
SRH Main Laboratory



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.