Insulin Receptor Antibody (Serum)
This test measures antibodies that may be present in your blood if your immune system mistakenly attacks insulin receptors, which could affect how your body responds to insulin.
["This test helps diagnose conditions like autoimmune diabetes or other rare disorders linked to insulin receptor antibodies."]
Key facts at a glance
- LOINC
- 13632-5
- Short code
- Insulin Recep Ab Titr Ser
- Synonyms
- Insulin Recep Ab Titr Ser
- Category
- coagulation
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 0.8
- Ref high
- 1.2
- Critical range
- — – 5 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 85610
- SNOMED
- 396252006
- 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 Is Done
Your healthcare provider may order this test if you have symptoms like unexplained diabetes onset, insulin resistance, or other autoimmune-related symptoms, especially if other tests (like those for type 1 diabetes) have not explained your condition.
How the Test Works
Blood is drawn from a vein in your arm. The sample is tested using an immunoassay method to detect the presence of antibodies that bind to insulin receptors.
What to Expect Before the Test
No special preparation is usually needed, but you may be asked to fast for 8–12 hours before the test if instructed by your provider.
What to Expect During the Test
You’ll lie down comfortably while a healthcare professional inserts a needle into your arm to draw blood. The process takes a few minutes, and you may feel a slight pinch.
Reference range
INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A
Inform your healthcare provider if you are taking blood thinners. No special preparation required.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Positive results for insulin receptor antibodies can indicate autoimmune diabetes or rare conditions like LADA (latent autoimmune diabetes in adults), where the immune system attacks insulin receptors before or alongside insulin-producing cells. This can sometimes mimic or complicate diabetes management.
Short name
Insulin receptor antibody
Frequently asked questions
What does a positive result mean?
Can this test be used to diagnose diabetes?
How long does it take to get results?
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