2 - 4 days
First Component of Complement (subunit C1q)
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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.
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.