CPT/HCPCS
86880
Order Code
CH753
Turnaround Time
48-72 hours
Test Includes
DAT- Direct Coombs Test
Specimen Requirements
Specimen Source
Whole blood
Transport Container
(Specimen Container)
(Specimen Container)
EDTA (lavender-top) tube
Preferred Specimens
Whole blood
Minimum Volume (uL)
Not specified
Collection Instructions
(Transport Temperature)
(Transport Temperature)
Transport at Room Temperature
Specimen Stability
| Temperature | Period |
|---|---|
| Room temperature | 24 hours |
| Refrigerated | 72 hours |
| Frozen | Unacceptable |
Reject Criteria
Received frozen, SST tube, Gross hemolysis, REd top tube
Test Details
Methodology
Immune Agglutination
Clinical Significance
The DAT (Direct Coomb’s test) is positive if red cells have been coated, in vivo, with immunoglobulin, complement, or both. A positive result can occur in immune-mediated red cell destruction, autoimmune hemolytic anemia, a transfusion reaction or in patients receiving certain drugs.
Reference Ranges
Negative
Alternative Names
Direct Antiglobulin Test
