ARUP's Laboratory Test Directory

C1Q Binding Assay : 0050301

Mnemonic: C1Q

Methodology: Enzyme-Linked Immunosorbent Assay
Performed: Mon, Thu
Reported: 1-8 days
Specimen Required: Collect:  One 6 mL plain red. Let stand on clot for two hours.

Storage/Transport Temperature:  1 mL serum, frozen. (Min: 0.3 mL)  Submit specimen in an ARUP Standard Transport Tube.

Remarks:  CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.  If ordered in conjunction with a Raji Cell Assay, draw two 6 mL plain red tubes and submit two 1 mL frozen serum specimens for testing. Repeated freeze/thaw cycles should be avoided.

Unacceptable Conditions:  Nonfrozen specimens.

Stability (collection to initiation of testing):  After separation from cells: Ambient: 2 hours; Refrigerated: Unacceptable; Frozen: 2 weeks
Reference Interval:
Less than 4 µgE/mL is considered negative for circulating complement binding immune complexes.
Interpretive Data: Circulating immune complexes may be found without any evident pathology and positive results do not necessarily implicate the immune complex in a disease process.
CPT Code(s): 86332
Cross References: Immune Complex Assay (C1Q)
 
 

 

 

 
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