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Glucose in Serum (24-hour profile)

Published: August 9, 2026Updated: August 16, 2026

This test measures your blood sugar levels over a 24-hour period using a sample of your serum to help assess how your body manages glucose.

Quick summary

["Understanding how your body regulates blood sugar over time can help identify diabetes or other metabolic conditions."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
7629-9
Short code
Sweet potato BasoBnd Ab Qn
Synonyms
Sweet potato BasoBnd Ab Qn
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
lhr
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your healthcare provider may order this test if they suspect you have diabetes, prediabetes, or another condition affecting blood sugar control. It helps track how your body responds to food, activity, and medications over a full day.

What to Expect Before the Test

You’ll typically provide a blood sample via a vein (usually in your arm) during a short office visit. If a 24-hour profile is needed, you may need to collect multiple samples at different times, often with instructions on fasting or timing around meals.

What the Results Mean

Results show your glucose levels at various points during the day, helping identify patterns like spikes after meals or low points between meals. Abnormal patterns may signal diabetes, insulin resistance, or other metabolic issues.

Common Conditions Linked to This Test

Glucose testing is critical for diagnosing diabetes (type 1 or type 2), gestational diabetes, or conditions like hypoglycemia (low blood sugar). It also helps monitor treatment effectiveness in people already diagnosed.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test provides a detailed picture of your body’s glucose metabolism, which is essential for preventing complications like nerve damage, kidney disease, or cardiovascular risks. Abnormal results may prompt further testing or lifestyle adjustments.

Frequently asked questions

What does a normal glucose profile look like?
A normal 24-hour glucose profile typically shows steady, moderate fluctuations in blood sugar levels without extreme peaks or drops. It reflects how your body naturally regulates glucose without significant spikes or crashes.
How often should I get this test if I have diabetes?
If you have diabetes, your healthcare provider may recommend testing every few months to monitor glucose levels and adjust medications or lifestyle strategies as needed. Follow their specific guidance based on your condition.
Can food or activity affect my glucose test results?
Yes, your diet, physical activity, and medications can influence glucose levels. If this is a 24-hour profile, follow any fasting or timing instructions precisely to get accurate results.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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