Serum Glucose Concentration (High-Performance Liquid Chromatography Method)
This test measures the amount of glucose (sugar) in your blood serum using a high-performance liquid chromatography method. Glucose is a key energy source for your body.
["This test helps monitor blood sugar levels, often used in diabetes management or metabolic assessments."]
Key facts at a glance
- LOINC
- 9376-5
- Short code
- Glucose 3.5h p 100 g Glc PO SerPl-mCnc
- Synonyms
- Glucose 3.5h p 100 g Glc 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 Is This Test Done?
Your healthcare provider may order this test to check for conditions like diabetes, hypoglycemia (low blood sugar), or to assess how your body processes glucose. It can also be used during pregnancy, before surgeries, or to evaluate metabolic disorders.
What Does the Result Mean?
Results are typically reported as a mass concentration of glucose in milligrams per deciliter (mg/dL). While reference ranges vary by lab, higher or lower than expected levels may signal potential health concerns that need further evaluation.
How Is This Test Performed?
A blood sample is drawn from a vein, usually in your arm. The serum portion is separated and sent to the lab for glucose measurement using advanced chromatography techniques to ensure accuracy.
Preparation and Considerations
No special preparation is needed, but fasting may be required depending on the clinical context (e.g., diabetes screening). Avoiding alcohol or strenuous activity before the test can help ensure reliable results.
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.
Abnormally high glucose levels may indicate diabetes, poor insulin function, or other metabolic issues. Low glucose levels can cause symptoms like dizziness, confusion, or fatigue. Repeated testing and follow-up with your healthcare provider are essential for diagnosis and management.
Short name
Serum Glucose
Frequently asked questions
What causes abnormal glucose levels?
How often should I get this test?
Can diet or exercise affect this test result?
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