Glucose, Serum or Plasma Mass Concentration (24-hour profile)
This test measures your blood glucose levels over a 24-hour period using a sample of your serum or plasma. It helps track how your body manages glucose, especially useful for managing diabetes or other metabolic conditions.
["This profile helps assess how your body responds to glucose over time, aiding in diabetes management or identifying metabolic patterns."]
Key facts at a glance
- LOINC
- 48036-8
- Short code
- Glucose Stl-mCnc
- Synonyms
- Glucose Stl-mCnc
- Category
- glucose
- Sample
- stool
- Container
- Clean container
- Units
- N/A
- Ref low
- 70
- Ref high
- 100
- Critical range
- 50 N/A – 400 N/A
- Fasting
- true
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 82947
- SNOMED
- 260395008
- Specimen volume
- 5 g
- Stability
- Refrigerated: 24h, Frozen: 7d
- TAT
- 4–24 hours
- Order
- routine
Why This Test Is Done
Doctors may order this test if you have diabetes, prediabetes, or if you’re at risk for blood sugar issues. It’s also used to monitor how well medications or lifestyle changes are controlling your glucose levels. Some people may need it to check for conditions like hypoglycemia (low blood sugar) or hyperglycemia (high blood sugar) over time.
How the Test Works
A blood sample is taken from a vein (usually in your arm) and sent to a lab. The lab measures glucose levels at different times during the 24-hour period using specialized equipment. The results are compiled to show trends in your glucose levels throughout the day.
What to Expect Before the Test
No special preparation is needed for this test, but you may be asked to avoid certain foods or drinks for a short time before the blood draw if instructed by your healthcare provider. Wear comfortable clothing and plan to stay near the testing site for the blood draw.
What to Expect During the Test
A healthcare professional will clean the area with an antiseptic, insert a small needle into your vein, and collect the blood sample. It usually takes a few minutes. You may feel a slight pinch or discomfort, but it’s generally quick and well-tolerated.
Reference range
Fasting: 70-100 mg/dLN/A
Fasting for 8-12 hours required. Water is permitted. Avoid chewing gum and smoking before the test.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Glucose Monitoring Profile
Frequently asked questions
How often should I expect this test?
What do my results mean?
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