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Test Code 4810 Denver Complete Islet Autoantibody Screen includes GAA, IA-2, IAA, TG, 21HYD and ZnT8

Specimen Containers and Fixatives

Gold Top Tube (SST)

Specimen Required

NorthShore Lab Services: draw 3.0 mL blood, centrifuge and submit 1.2 mL refrigerated serum.

Hospital setting: submit 3.0 mL blood.

Day(s) and Time(s) Performed

Monday – Friday, 10 days

Reference Values

GAA (GAD Autoantibodies)

<20: Normal

>25: Elevated

IA-2 (Islet Antigen 2 Autoantibodies)

<5: Normal

>7: Elevated

IAA (Isulin Autoantibodies)

<0.011: Normal

>0.013: Elevated

ZnT8 (Zinc Transporter 8 Autoantibodies)

<0.050: Normal

>0.100: Elevated

Hyd21 (21-Hydroxylase Autoantibodes)

<0.150: Normal

≥0.200: Elevated

tTG (Transglutaminase Autoantibodies)

<0.050: Normal

>0.100: Elevated

Method Name

RIA

CPT Code Information

83519, 86341, 86337, 83516, 83519, 86849