Insulin Antibody Titration (Serum)
This test measures the presence and level of antibodies that may interfere with insulin action in your body. It helps identify if you have autoimmune reactions to insulin, which can affect how well insulin works for managing diabetes.
["Checks for insulin-related immune responses that could impact diabetes treatment."]
Key facts at a glance
- LOINC
- 11087-4
- Short code
- Insulin Ab Titr Ser
- Synonyms
- Insulin Ab Titr Ser
- Category
- hormone
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 2.6
- Ref high
- 24.9
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 83525
- SNOMED
- 413618004
- 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 experience unusual symptoms like unexplained weight changes, frequent infections, or persistent high blood sugar levels despite taking insulin. It’s also used in patients with type 1 diabetes who develop symptoms of insulin resistance or if insulin therapy isn’t working as expected.
How the Test Works
A small blood sample is taken from your arm. The serum is then tested to measure insulin antibodies using an immunoassay method. This helps determine if your immune system is producing antibodies that could block insulin’s effects.
Sample Collection and Preparation
The test requires a simple blood draw, usually done in a clinic or lab. The serum portion is separated from the blood and sent to a laboratory for precise antibody measurement. No special preparation is needed, but fasting may be advised depending on your provider’s instructions.
What the Results Mean
Positive results indicate the presence of insulin antibodies, which may reduce insulin effectiveness. This can lead to complications like poor glucose control, weight gain, or increased risk of infections. Your provider will discuss these findings with you and may adjust your treatment plan accordingly.
Reference range
Fasting: 2.6-24.9 μIU/mLN/A
No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Insulin Antibody Test
Frequently asked questions
What causes insulin antibodies to develop?
How long does it take to get results from this test?
Can insulin antibodies be treated or managed?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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