Red Cross Sensitive IgA with Reflex to Anti-IgA
Test Mnemonic
SENIGA
CPT Codes
- 82784 - QTY (1)
Performing Laboratory
American Red Cross National Reference Laboratory for Specialized Testing
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Serum | No additive (Red) | Frozen | Must be a pre-transfusion sample or sample collected at least 6 weeks after transfusion of IgA-containing products or IVIG infusion. Centrifuge and transfer serum to standard aliquot tube. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Plasma | EDTA (Lavender) | Frozen | Must be a pre-transfusion sample or sample collected at least 6 weeks after transfusion of IgA-containing products or IVIG infusion. Centrifuge and transfer plasma to standard aliquot tube. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Frozen | Acceptable (Preferred) |
| Refrigerated | Acceptable |
| Ambient | Unacceptable |
Days Performed
Varies
Turnaround Time
15 - 16 days
Methodology
| Name | Description |
|---|---|
| Flow Cytometry (FC) | |
| Immunoassay (IA) |
Special Info
Serum and plasma from gel separator tubes are unacceptable. Sample receipt hours are 7:00 AM - 5:00 PM Monday - Thursday and 7:00 AM - 12:00 PM Friday. The completed NRLST request form must be included with the sample. This test has a possible reflex to Anti-IgA at an additional charge.
Clinical Info
Quantitative IgA level measurement, typically below 0.05 mg/dL. Must be a pre-transfusion sample or sample collected at least 6 weeks after transfusion of IgA-containing products or IVIG infusion. The Sensitive IgA is performed via Flow Cytometry. The reflex anti-IgA is performed via Immunoassay. Anti-IgA testing will be performed if indicated.