Days Set Up
Monday, Wednesday, Friday
Analytic Time

2 - 6 days

Soft Order Code
GAD65C

Test Updated:

Synonyms

Anti-GAD
GAD (Glutamic Acid Decarboxylase) Antibody
GAD65
ICAB
Islet Cell Cytoplasmic Antibody
Stiffman Syndrome
GAD65 Ab Assay, CSF
GAD CSF

Looking to order a test?

We’ve provided helpful links to make ordering easy.

Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

Visit our provider FAQ and learn about common questions to ordering tests.

Test Overview

Test Methodology

Immunoprecipitation Assay

Test Usage

Assessing susceptibility to autoimmune (type 1) diabetes mellitus and related endocrine disorders. Distinguishing between type 1 and type 2 diabetes. Confirming diagnosis of stiff-man syndrome and related autoimmune encephalomyelopathies.

Reference Range

< or = 0.02 nmol/L

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Offsite

Collect spinal fluid; refrigerate.

Normal Volume
1.5 mL CSF
Minimum Volume
1 mL CSF

Billing Information

CPT Code
86341
Pro Fee Code
 
LOINC
 

Have More Questions?

Explore our helpful billing resources:

Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.