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General Information:

Web Links:

Mayo Clinic Laboratories

Test Code LAB0202846 Direct Antiglobulin Test (DAT), Blood

Methodology

Gel Technology

Note:  A positive Anti-IgG will reflex to Antibody Elution (LAB1029) if indicated

Performing Laboratory

CentraCare Laboratory Services

Specimen Requirements

Specimen Type: Whole blood

Container/Tube: Lavender top (EDTA)-EDTA MICROTAINER is also acceptable.

Specimen Volume: 5 mL

Collection Instructions: 

1. Plasma gel tube is not acceptable.

2. Specimen cannot be frozen.

Specimen Transport Temperature

Ambient/Refrigerated OK/Frozen NO

Reference Values

Anti-IgG: negative
Anti-C3: negative

Critical value (automatic call-back): positive previously unknown

Note: Only anti-IgG is performed routinely on newborns.

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

86880