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Mayo Clinic Laboratories

Test Code DAT Coombs, Direct

Specimen Requirements

Draw blood in a lavender-top (EDTA) tube(s), and send 5 mL (pediatric:  0.5 mL) of EDTA whole blood. Forward unprocessed whole blood promptly.

Reject Due To

 

Hemolysis

NA

Lipemia

NA

Icterus

NA

 

Reference Values

Negative (reported as positive or negative)

Day(s) Test Set Up

Monday through Sunday

Performing Laboratory

Huntsville Hospital Laboratory/Madison Hospital Laboratory

Test Classification and CPT Coding

86880

Specimen Stability Information

 

Specimen Type

Temperature

Time

Whole blood, EDTA

Refrigerated

72 hours