- Test Name
- C2 Complement
- Aliases
- Complement C2, C2, C2 Complement, C2 Protein
- Provincial Mnemonic
- COMC2
- LOINC Test Code
- 4484-2
- Description and Primary Use
- Second tier test for diagnosing C2 deficiency testing in patients with recurrent pyogenic infections, recurrent angioedema, cryoglobulinemic vasculitis and Low CH50, used in investigation of patients with absent total complement.
- Reorder interval
- N/A
- TAT
- 20 Days
- Test Cost
- $20.62
- Tier
- 2 - Conditional/Restricted Access (See Ordering Requirements)
- Ordering Requirements (Restrictions / Conditions)
Approval requires test order:
1) by Allergist/Immunologist; or
2) Completed LTSA Form.
Enter test name (and/or Provincial Mnemonic) into Test(s) to be performed section on the LTSA Form. Direct questions on how to order test to Specimen Dispatch (709-777-2373).
- Required Consultations
- N/A
- Algorithms and Guidelines
N/A
- Special Patient Preparation
None
- Special Collection / Transport / Processing Requirements
Specimen for this test must be collected, processed, aliquoted and frozen within 45 – 60 minutes of collection.
- Criteria for Rejection
Plasma; SST gel tube. Gross lipemia.
- Laboratory Service Area
- Clinical Chemistry
- Performing Laboratory / Site
- Referred out of province
- Last Updated
- 17-May-19