Glucose, measured by high-performance liquid chromatography (HPLC) in serum/plasma
This test measures the amount of glucose (sugar) in your blood, using a precise HPLC method. It helps assess how well your body is managing blood sugar levels.
["This test helps monitor blood sugar control, often used alongside other glucose tests for detailed evaluation."]
Key facts at a glance
- LOINC
- 1501-6
- Short code
- Glucose 1h p 100 g Glc PO SerPl-mCnc
- Synonyms
- Glucose 1h 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 diabetes, prediabetes, or to monitor blood sugar levels in people with known diabetes. It can also help diagnose conditions like hypoglycemia (low blood sugar) or other metabolic disorders.
How Is the Sample Collected?
A small amount of blood will be drawn from a vein, usually in your arm, by a healthcare professional. The blood sample is then processed to separate serum or plasma for testing.
What Should You Expect Before the Test?
No special preparation is usually needed, but you may be asked to fast for 8–12 hours before the test if it’s part of a fasting glucose profile. If you’re unsure, ask your provider for specific instructions.
What Are Common Results and Their Meanings?
Results are typically reported as a mass concentration of glucose in the blood. While reference ranges can vary by lab, higher or lower than expected levels may signal potential health concerns that need further evaluation.
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.
This test plays a critical role in diagnosing and managing blood sugar disorders. High glucose levels may indicate diabetes or insulin resistance, while persistently low levels could signal hypoglycemia or other metabolic issues. Regular monitoring helps prevent complications like nerve damage, kidney problems, or heart disease.
Short name
Glucose Level (HPLC)
Frequently asked questions
What does a high glucose level mean?
How often should I get this test?
Can diet or exercise affect my glucose test results?
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