Glucose and Fructosamine Profile (Serum/Plasma)
This test measures your blood sugar (glucose) level and a protein-related marker (fructosamine) that reflects how your blood sugar has been controlled over the past two weeks.
["Helps track blood sugar trends and diabetes management over time."]
Key facts at a glance
- LOINC
- 51766-4
- Short code
- Glucose 2.5h p fructose PO SerPl-mCnc
- Synonyms
- Glucose 2.5h p fructose PO 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 Matters for Blood Sugar Control
Glucose levels provide a snapshot of your current blood sugar, while fructosamine gives insight into how consistently your blood sugar has been managed. Together, they help doctors assess both short-term and longer-term diabetes control.
What Each Measurement Tells You
• **Glucose** – Shows your immediate blood sugar level, which can spike or drop depending on meals, activity, or medications. • **Fructosamine** – Reflects average blood sugar over the past 2–3 weeks by measuring glycated proteins, helping identify trends in glucose management.
When This Test Is Ordered
Doctors may order this test if you have diabetes to monitor long-term glucose control, evaluate treatment effectiveness, or check for complications like poor glucose regulation. It’s also used in research or specialized care plans.
What to Expect Before the Test
No special preparation is needed unless instructed. You may have a blood draw from a vein (like an arm) or a fingerstick for glucose. Fructosamine is typically measured in serum or plasma, so fasting isn’t required but may be recommended for glucose alone.
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.
Clinical Significance: Beyond Just Blood Sugar Numbers
Short name
Glucose & Fructosamine Test
Frequently asked questions
Why might my glucose and fructosamine levels be checked together?
Can fructosamine replace HbA1c?
What if my glucose is high but fructosamine is normal?
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