Automated Liposome Lysis Assay
Diagnosis of C1 deficiency. Investigation of a patient with an absent total complement CH50 level.
34 - 63 unit/mL
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Absent (or low) C1q functional levels in the presence of normal C1q antigen levels should be replicated with a new serum specimen to confirm that C1q inactivation did not occur during shipping.
2 - 4 days
- First Component of Complement (subunit C1q)
- Complement C1Q
A fasting specimen is preferred but not required. Collect blood in a red top tube; do not use SST tube. Immediately place on wet ice. Centrifuge, aliquot serum into a plastic vial and freeze immediately. Hemolytic or thawed specimens are unacceptable.
Place specimen on wet ice immediately following collection. Must arrive in lab or aliquot and freeze within 15 minutes.
Test sent to Mayo Medical Laboratories.