Direct antiglobulin test (DAT)


 

Alternative names, keywords

Coombs test

Samples required

EDTA blood for group and screen (G&S) (pink cap, 6 mL tube). Smaller tubes are available for paediatric samples.

Test indications

Used to detect antibodies on the red cell surface. Positive in some haemolytic anaemias.

Key factors affecting test performance or interpretation

Haemolysed sample, lipaemia, clotted sample.

Reference range

 

Turnaround time

1 working day

Enquiries

Haematology (Transfusion)