ARUP's Laboratory Test Directory
| 0050301: C1Q Binding Assay |
| Test 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.
Transport: 1 mL serum, frozen. (Min: 0.5 mL) Submit specimen in an ARUP Standard Transport Tube. Pediatric Collection/Transport: 0.15 mL serum, frozen. 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: 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 |