91067 Complement Component 2

Specimen:

Collect:

One 7.5 mL SST

Submit:

1 mL (Min:0.5 mL) Serum. Submit Frozen. Submit in a Standard Transport Tube.

Special Handling:

Avoid Repeated Freeze/Thaw Cycles
Critical Frozen
Separate from cells ASAP
Allow specimen to clot for one hour at ambient temperature.

Stability:

Ambient: 2 Hour(s); Refrigerated: Unacceptable; Frozen: 2 Week(s); Incubated: Unacceptable

Methodology:

Immunodiffusion

Performed:

Monday, Thursday

Reported:

6-10 Day(s)

CPT Codes:

86160 - Complement Antigen

Interpretive Data:

General Reference Range : 1.0-4.0 mg/dL
Decreased C2 levels may be associated with increased susceptibility to infection (especially pneumococcal infections), systemic erythematosus-like disease, rashes, arthritis, nephritis, and with C1-Esterase deficiency. Increased C2 levels are associated with acute phase response.