Referred to Clinical Chemistry, Royal Devon & Exeter Hospital, Barrack Road, Exeter EX2 5DW|
Alternative names, keywords |
Anti-GAD, anti-glutamic acid decarboxylase antibody, GAD65 antibodies |
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Samples required |
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Test indications |
GAD antibodies are associated with stiff-person syndrome and type 1 (autoimmune) diabetes mellitus. |
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Test information |
Testing now includes IA-2 antibody and zinc transporter 8 antibody. |
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Reference range |
0 - 10.9 U/mL Positive cut-off ≥ 11.0 U/mL |
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Turnaround time |
Referral lab quotes a target reporting time of 2 weeks, however additional time must be allowed for packing, dispatch and delivery of sample, and return and processing of results. |
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Enquiries |
Immunology (Referrals) |
Clotted blood (gold cap, 5 mL tube). Smaller tubes are available for paediatric samples.