Glucose in Serum (24-Hour Profile)
This test measures your blood sugar levels over a 24-hour period to help assess how your body manages glucose, often used in patients with suspected diabetes or metabolic disorders.
["Understanding your body’s glucose control over time can help identify patterns or issues with blood sugar regulation."]
Key facts at a glance
- LOINC
- 33125-6
- Short code
- GA from OOD.Trout94
- Synonyms
- GA from OOD.Trout94
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- us-estimated-from-ood-trout
- 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 doctor may order this test if you have symptoms like excessive thirst, frequent urination, unexplained weight changes, fatigue, or if you have a family history of diabetes. It may also be used to evaluate how your body responds to treatments for blood sugar control.
What to Expect Before the Test
No special preparation is typically needed, but you may be asked to fast for a certain period before collecting samples. Follow your healthcare provider’s instructions carefully to ensure accurate results.
How the Test Works
Blood samples are collected at multiple time points over 24 hours to measure glucose levels. The results help create a profile of your blood sugar fluctuations throughout the day.
What the Results Mean
The test results provide a detailed picture of your glucose levels, which can help identify patterns such as high or low blood sugar, especially during certain times of the day. This information is critical for diagnosing conditions like diabetes or prediabetes.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Glucose monitoring over 24 hours helps detect subtle fluctuations that may not be apparent with single-point measurements. This can reveal whether your body is effectively managing glucose, whether medications or lifestyle factors are working as intended, or if there are underlying metabolic issues requiring further investigation.
Short name
24-Hour Serum Glucose Monitoring
Frequently asked questions
How often should I expect blood samples taken during this test?
Will fasting be required before this test?
What if I miss a scheduled blood draw?
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