Test Overview
C2H(50) Automated Liposome Lysis Assay
Investigating an undetectable total complement (CH50) level. Investigation of patients with acquired ongoing immune processes such as lupus erythematosus. Differentiation of congenital from acquired deficiencies.
25 - 47 unit/mL
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
2 - 4 days
- Complement C2
- Second Component of Complement
- FC4
- FC3
- C2 COMPLEMENT, FUNCT'L, SERUM
- C2 FUNC
- C2 INTERP
- INTERPRETATION
Specimen Requirements
A fasting specimen is preferred but not required. Collect blood in a red top tube. Immediately after drawing specimen, place the tube on wet ice. Centrifuge, aliquot serum into a plastic vial and freeze immediately.
Place specimen on wet ice immediately following collection. Must arrive in lab or aliquot and freeze within 15 minutes.
Additional Information
If C2 results are <15 U/mL, C3 (order code FC3, MML C3 8174), C4 (order code FC4, MML C4 8171) and C2 Antigen (order code C2AG, MML C2AG 84141) assays will be performed at an additional charge. By ordering this test the clinician acknowledges that additional reflex testing will be performed and billed at a separate additional charge if indicated. Test sent to Mayo Medical Laboratories.