| Ordering Code | 18 |
|---|---|
| Test Name | Direct Antiglobulin Test (IgG & C3) |
| Alias | Direct Antiglobulin Test (AHG) Direct Anti-human Globulin Test Direct Coombs Test DAT Coombs Test, Direct (AHG) Coombs Test, Direct |
| Preferred Specimen | Whole Blood |
| Preferred Container | EDTA, K2 (Lavender) |
| Optimum Volume | 6 mL |
| Transport Requirements | Oahu: Ambient Airline: Refrigerated |
| Specimen Stability | Ambient: 24 Hours Refrigerated: 10 Days Frozen: Not Stable |
| Rejection Criteria | Contaminated, Frozen, Gel barrier tube, Grossly hemolyzed, Insufficient quantity, Specimen not properly labeled |
| Avail. Stat | YES |
| Analytic Time | 1 Day |
| Methodology | Hemagglutination |
Reference range(s)
The reference ranges listed below are valid on this date of November 1, 2025.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| Direct Antiglobulin Test (IgG & C3) | ALL | Negative | Negative |
