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Pancreatic Islet Cell Antibody (Serum) - Immunoassay

Published: August 9, 2026Updated: August 17, 2026

This test measures antibodies that may indicate an autoimmune response targeting the cells in your pancreas, which could be linked to conditions like type 1 diabetes.

Quick summary

["This test helps assess potential autoimmune damage to pancreatic islet cells, sometimes used in diagnosing or monitoring autoimmune diabetes-related disorders."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
45171-6
Short code
Panc Islet Cell Ab Ser IF-aCnc
Synonyms
Panc Islet Cell Ab Ser IF-aCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Critical range
0.5 N/A – —
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
if
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 Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms of diabetes, such as frequent urination, extreme thirst, unexplained weight loss, or fatigue. It may also be used in people with a family history of type 1 diabetes or other autoimmune conditions. Sometimes, it’s part of a broader evaluation for unexplained symptoms or suspected autoimmune disorders.

What to Expect Before the Test

No special preparation is needed for this blood test. You may have a small needle inserted into your arm to draw blood, which usually takes a few minutes. If you’re on blood thinners or have a history of bleeding issues, let your provider know beforehand.

What Happens During the Test

The test involves drawing a small amount of blood from a vein in your arm. The blood sample is then sent to a lab for analysis using an immunoassay method to detect specific antibodies. The results help determine if there’s an immune response targeting pancreatic cells.

What the Results Mean

Positive results suggest the presence of antibodies that may indicate an autoimmune process affecting the pancreas. While this doesn’t confirm diabetes alone, it can support a diagnosis of autoimmune-related conditions like type 1 diabetes or other autoimmune pancreatic disorders. Your provider will discuss these findings in detail with you.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test plays a key role in diagnosing autoimmune diabetes and other pancreatic autoimmune conditions. Elevated antibody levels can help confirm a diagnosis, guide treatment decisions, and monitor disease progression. It’s particularly useful in cases where traditional diabetes markers like glucose levels are less definitive or when symptoms are atypical.

Short name

Islet Cell Antibody (Serum)

Frequently asked questions

What does a positive result mean?
A positive result means your blood contains antibodies that may target pancreatic islet cells, which could be linked to autoimmune conditions like type 1 diabetes. This doesn’t mean you definitely have diabetes, but it may indicate an immune response that warrants further evaluation.
Can this test be used to diagnose diabetes?
This test is often used alongside other markers, such as glucose or C-peptide levels, to help diagnose autoimmune diabetes. It’s not a standalone test but can provide important clues about the underlying cause of symptoms.
How often should I get this test?
Your provider will determine the frequency of testing based on your symptoms, medical history, and other test results. Some people may need this test once, while others might have follow-up tests periodically, especially if they have a higher risk for autoimmune conditions.
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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 17, 2026. · Read our editorial policy