Imperial Collage Healthcare

GAD (glutamic acid decarboxylase) antibodies

Test Background
GAD65 antibodies are found in patients with type 1 autoimmune diabetes. Antibodies to GAD65 are also found in ~60 % of patients with stiff person syndrome.

Clinical Indications
Type 1 autoimmune diabetes Stiff person syndrome

Reference Range
<5.0 AU/mL

Sample Required
RST (rust top), Gel SST (Yellow Top) CSF

Sample Volume
5-10 mL (1 mL serum)

Turnaround Time
21 days

The laboratory is not accredited for testing CSF samples for this test.

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