| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Complement Component C4c : 353
Test CodeC4Q or 353
CPT Codes
86160
Transport Container
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
1 mL serum
Minimum Volume
0.5 mL
Transport Temperature
Refrigerated.
Specimen Stability
Room temperature: Unacceptable; Refrigerated: 4 days; Frozen: 21 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received room temperature.
Methodology
Immunoturbidimetric
Setup Schedule
Sunday - Friday
Report Available
2-3 days (From receipt at performing Laboratory)
Reference Range
Male Female
<1 Year Not established Not established
1-14 Years 14-44 mg/dL 14-46 mg/dL
15-80 Years 15-53 mg/dL 15-57 mg/dL
≥81 Years Not established Not established
<1 Year Not established Not established
1-14 Years 14-44 mg/dL 14-46 mg/dL
15-80 Years 15-53 mg/dL 15-57 mg/dL
≥81 Years Not established Not established
Clinical Significance
Decreased C4 level is associated with acute systemic lupus erythematosis, glomerulonephritis, immune complex disease, cryoglobulinemia, congenital C4 deficiency and generalized autoimmune disease.
Performing Laboratory
Quest Diagnostics
