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Autoantibody Panel to Screen for Islet Cell Antibodies (Serum)

Published: August 9, 2026Updated: August 16, 2026

This test measures antibodies that may indicate an autoimmune response targeting insulin-producing cells in the pancreas, often linked to type 1 diabetes.

Quick summary

["This screening helps detect early signs of autoimmune conditions affecting insulin production."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
56718-0
Short code
Islet Cell512 Ab Ser IA-aCnc
Synonyms
Islet Cell512 Ab Ser IA-aCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ia
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Matters

Autoimmune diseases like type 1 diabetes can develop when the immune system mistakenly attacks healthy cells. This test checks for specific antibodies (islet cell antibodies) that may signal this process in the pancreas. While not all positive results mean diabetes, they can prompt further evaluation.

What to Expect Before the Test

No special preparation is needed. You’ll provide a blood sample, typically drawn from your arm. The test is usually done in a lab setting and may take a few minutes. Results are often available within a few days.

What the Results Mean

A positive result suggests the presence of islet cell antibodies, which may indicate an autoimmune response. This doesn’t confirm diabetes but can guide further testing, such as C-peptide levels or genetic screening. False positives can occur, so follow-up with your healthcare provider is important.

Common Causes of Positive Results

Positive results are most commonly associated with type 1 diabetes, but they can also appear in other autoimmune conditions or during early stages of the disease. Rarely, they may be found in people without diabetes or autoimmune issues.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Islet Cell Antibody Screen

Frequently asked questions

What does a positive result imply?
A positive result means your blood contains antibodies targeting pancreatic islet cells. This is often a marker for an autoimmune process, particularly in type 1 diabetes. Your doctor will likely order additional tests (like C-peptide levels) to assess whether insulin production is affected and to rule out other conditions.
Can this test predict diabetes?
This test can help identify individuals at higher risk for type 1 diabetes by detecting early autoimmune activity. However, it doesn’t predict diabetes with certainty. Early detection allows for closer monitoring and potential interventions to manage symptoms before full onset.
What if my results are positive but I don’t have symptoms?
If you test positive but don’t have symptoms, your doctor may recommend further testing, such as genetic screening or monitoring for other autoimmune markers. Some people with positive results never develop diabetes, while others may need lifelong insulin management. Regular check-ups will help track your health.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy