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Serum Glucose (Mass Concentration) – 24-Hour Profile

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

This test measures your blood glucose levels over a 24-hour period using a sample of your serum. It helps track how your body manages glucose, which is important for managing conditions like diabetes.

Quick summary

["This test provides insight into your blood sugar control throughout the day, aiding diabetes management or assessing metabolic health."]

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

Key facts at a glance

LOINC
6883-3
Short code
PB Glucose SerPl-mCnc
Synonyms
PB Glucose SerPl-mCnc
Category
glucose
Sample
serum
Container
Red-top tube (SST)
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 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 healthcare provider may order this test if you have diabetes or are at risk of developing it. It helps monitor how well your body responds to glucose over time, especially if you take medications or insulin. It may also be used to evaluate metabolic health in other conditions, such as liver or kidney disease.

What to Expect Before the Test

No special preparation is needed for this test. You may have a blood sample drawn from a vein in your arm, typically in a clinic or lab setting. If you’re taking insulin or glucose-lowering medications, let your provider know before the test.

What the Test Results Mean

The results show your glucose levels at different times during the 24-hour period. While exact reference ranges vary by lab, consistent high or low readings may indicate poor glucose control or other health concerns. Your provider will interpret the results in the context of your overall health.

Common Conditions This Test Helps Diagnose or Monitor

This test is primarily used to diagnose or monitor diabetes, including type 1 and type 2 diabetes. It may also help assess hypoglycemia (low blood sugar) or hyperglycemia (high blood sugar) in other contexts, such as during pregnancy or after certain medical treatments.

Reference range

Fasting: 70-100 mg/dLN/A

Specimen: serum

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 get this test if I have diabetes?
The frequency depends on your diabetes management plan. Your healthcare provider will determine how often to check your glucose levels based on your treatment, blood sugar trends, and overall health. Regular monitoring helps prevent complications and keeps your blood sugar within target ranges.
What does a 'normal' glucose profile look like?
There is no single 'normal' profile because glucose levels vary naturally throughout the day. However, consistent patterns (e.g., spikes after meals or stable levels) can indicate healthy glucose metabolism. Your provider will compare your results to your personal baseline and any known health conditions.
Can lifestyle changes affect these test results?
Yes, lifestyle factors like diet, exercise, stress, and sleep can influence your glucose levels. Eating balanced meals, staying active, managing stress, and getting enough sleep may help improve your glucose control. Always discuss lifestyle adjustments with your healthcare provider before making changes, especially if you’re on medication.
  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