Insulin Concentration (Serum) Following Meals
This test measures your insulin levels in blood drawn after eating to help assess how your body responds to glucose.
["This test helps evaluate how well your pancreas produces insulin after meals."]
Key facts at a glance
- LOINC
- 95117-8
- Short code
- Insulin 3h p meal SerPl-aCnc
- Synonyms
- Insulin 3h p meal SerPl-aCnc
- 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 Is This Test Done?
Your healthcare provider may order this test if you have symptoms of diabetes, insulin resistance, or metabolic issues. It can also be used to diagnose or monitor conditions like reactive hypoglycemia or prediabetes. This test helps determine how your body processes glucose and insulin during digestion.
What to Expect Before the Test
You’ll typically fast overnight before this test, but your provider may instruct you differently. Bring any medications you’re taking and let them know if you have any allergies. Blood is drawn from a vein, usually in your arm, and you may feel a slight pinch or discomfort.
What Happens During the Test?
After eating a meal, blood samples are taken at specific intervals to measure insulin levels. The timing and frequency depend on your provider’s instructions. The test may also include glucose measurements to assess how your body responds together.
What Does the Test Result Mean?
Results help identify whether your insulin levels rise appropriately after eating. Abnormal results may indicate issues like diabetes, insulin resistance, or other metabolic disorders. Your provider will interpret the results in the context of your overall health and symptoms.
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.
Clinical Significance: This test is critical for diagnosing conditions related to insulin and glucose metabolism. Elevated or delayed insulin responses may signal prediabetes, type 2 diabetes, or other metabolic disorders. Low or insufficient insulin responses could indicate problems with insulin production or function, requiring further evaluation and management.
Frequently asked questions
Will I Need to Prepare for This Test?
How Long Will I Have to Wait for Results?
Can I Take Medications Before the Test?
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