Automated Liposome Lysis Assay
Diagnosis of C8 deficiency; investigation of a patient with absent total complement (CH50) level.
33 - 58 units/mL
1 - 3 days
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. STRICT FROZEN
The Complement, Total Hemolytic (CH50) assay should be used as a screen for suspected complement deficiencies before ordering individual complement component assays. A deficiency of an individual component of the complement cascade will result in an undetectable total complement level. Test sent to Mayo Medical Laboratories.