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Test Code: GAD Preferred Name Diabetes Autoimmune Panel

Results Avail After Hours:No

Urgent:N/A

Test Frequency:Fortnightly

Routine:2 weeks

MBS Status:Medicare Item

Min. Re-Test Interval:N/A

Public price:

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Test Tubes

Image	Specimen Type	Specimen Volume	Tube Type
	Blood (adult)	5 mL	SST with gel 8.5 mL (Dark Yellow Top)
	Blood (paediatric)	1 mL	2x SST with gel 600 uL Paed (Red or Yellow top)

COLLECTION NOTES

Glutamic acid decarboxylase antibodies (GAD), ZNT8 and IA2 testing are performed as a profile for diabetes

CSF GAD antibodies for neurological disorders- is on a different code- review Pathtest.

GENERAL NOTES

INTERPRETATION: GAD antibodies are present in >70% of diabetic patients treated with insulin but only 10% of those maintained on oral hypoglycaemic agents.

GAD antibodies may also be paired with CSF GAD antibodies for the investigation of CNS disorders.