Serum Insulin Concentration (Pregnancy-Specific, 10-Minute Post-Glucose Challenge)
This test measures your insulin levels in your blood after drinking a glucose solution during pregnancy. It helps assess how your body responds to glucose and may be used to evaluate risk for gestational diabetes.
["Assesses insulin sensitivity and glucose metabolism during pregnancy."]
Key facts at a glance
- LOINC
- 55481-6
- Short code
- Insulin 10M pre Glc SerPl-sCnc
- Synonyms
- Insulin 10M pre Glc SerPl-sCnc
- Category
- glucose
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 2.6
- Ref high
- 24.9
- Fasting
- true
- 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 Is Done During Pregnancy
Doctors may order this test if you have risk factors for gestational diabetes, such as obesity, family history, or previous gestational diabetes. It’s often part of a screening or diagnostic process to check how your body handles sugar during pregnancy.
What to Expect Before the Test
You’ll drink a sugary liquid (glucose solution) and then have blood drawn from a vein (usually in your arm) 10 minutes later. The test is quick but may cause a brief pinch or discomfort at the needle site.
How the Results Are Used
Your results help determine if your insulin levels are normal after eating sugar, which can indicate whether you have gestational diabetes or need further monitoring. High or low results may signal different health concerns.
Common Questions About This Test
This test is typically done in a doctor’s office or clinic. You may be asked to fast for a few hours before drinking the glucose solution, but you can eat and drink normally afterward.
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.
Your doctor may recommend follow-up tests or lifestyle changes if your insulin levels are outside expected ranges. Always discuss results with your healthcare provider.
Short name
Pregnancy Insulin Test (10 min post-glucose)
Frequently asked questions
Will I feel sick after drinking the glucose solution?
How long will I need to wait for my results?
Can I eat or drink anything 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