Direct Coombs Test

Pathology category

Blood Transfusion

Code

Referral code

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Test information

This screens for IgG and C3b, C3d. The test is also known as a Direct Antiglobulin Test.

Guidelines

Pre-analytical

Samples to be transported to the laboratory within 72 hours between 2 – 25C

Reference range

Tube type

Tube type info

1 x 6ml pink top EDTA tube

or

1 x 3ml purple top EDTA tube

Special requirements

Minimum volume

2ml

Assay frequency

TAT Inpatient (urgent)

TAT Inpatient

TAT GP/Outpatient

Referral lab

Local haematology