Glutamic Acid Decarboxylase-65 Antibody Blood Test

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Feature	Labcorp	Quest Diagnostics
Price	$118.49	$50.49
Results in	~4 business days	~5 business days
Sample type	Blood Serum	Blood Serum
Require fasting	No	No

About the test

This test measures GAD-65 antibodies, which are used to diagnose insulin dependent diabetes mellitus [Type I diabetes (autoimmune-mediated diabetes)]. The presence of GAD-65 antibodies can help assess the risk of developing of Type I diabetes, predict onset of Type I diabetes, and assess the risk of developing an related endocrine disorder.

Included biomarkers & Reference ranges

Biomarker	Reference range
Glutamic Acid Decarboxylase-65 Antibody An autoantibody that attacks insulin-producing cells. Used to help diagnose type 1 diabetes and distinguish it from type 2.	—

Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.

How it works

1. Order online No referral or insurance
2. Get a requisition By email in 24–72 hours
3. Visit a draw center Bring a matching photo ID
4. Get results Securely by email

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Consultations

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Schedule a consultation with a Hormunity specialist. We’ll walk through every marker, interpret what it means for you, and map out the next steps for your care.

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