Glutamic Acid Decarboxylase (GAD-65) Autoantibodies

TEST: 500611
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CPT: 86341
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Synonyms

GAD-65

Expected Turnaround Time

2 - 7 days

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.

Specimen Requirements

Specimen

Serum

Volume

0.5 mL

Minimum Volume

0.1 mL (Note: This volume does not allow for repeat testing.)

Container

Red-top tube or gel-barrier tube

Collection

Serum must be separated from cells within 45 minutes of venipuncture. Send serum in plastic transport tube.

Storage Instructions

Ship frozen on dry ice.

Test Details

Methodology

Enzyme-linked immunosorbent assay (ELISA)

Reference Interval

<5 U/mL