- Test Name
- Immunoglobulin A
- Aliases
- IgA
- Provincial Mnemonic
- IGA
- LOINC Test Code
- 2458-8
- Description and Primary Use
- First line test when screening for IgA-associated vasculitis and adjunct test with TTG for celiac disease screening. First line test to confirm hypogammaglobulinemia in patients with recurrent sinopulmonary infections or chronic diarrhea. Second line test for following patients with moderate to large monoclonal proteins.
- Reorder interval
- 28 Days
- TAT
- ≤3 Days
- Test Cost
- Not Available
- Tier
- 3 - Special Authorization Required (See Required Consultation)
- Ordering Requirements (Restrictions / Conditions)
No Restrictions
- Required Consultations
- None
- Algorithms and Guidelines
None
- Special Patient Preparation
None
- Special Collection / Transport / Processing Requirements
No special requirement
- Criteria for Rejection
Based on specimen condition and stability
- Laboratory Service Area
- Clinical Chemistry
- Performing Laboratory / Site
- Category 4 Laboratory (HSC only)
- Last Updated
- 04-Sep-19