551

Test CODE NAME

551

Complement C2

Methodology: Quantitative Radial Immunodiffusion
Performed: Mon,Thu
Reported: 7-10 days
Specimen Required: Collect: Serum Separator Tube (SST) - 1 ml serum.
Specimen Preparation: Allow specimen to clot for one hour at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer  serum to a Standard Transport Tube and freeze immediately. 
Storage/Transport Temperature:CRITICAL FROZEN. 
Separate specimens must be submitted when multiple tests are ordered.
Unacceptable Conditions: Non-frozen specimens. Specimens exposed to repeated freeze/thaw cycles. 
Specimens left to clot at refrigerated temperature. 
Stability: After separation from cells: Ambient: 2 hours; Refrigerated: Unacceptable; Frozen: 2 weeks
Note: This test is approved for NY .
Performing Lab 
ARUP Laboratory
CPT Code(s): 86160