Glucose, Plasma (High-Performance Liquid Chromatography)
This test measures the amount of glucose (sugar) in your plasma, which helps assess blood sugar levels.
["A key check for managing blood sugar, especially for diabetes or metabolic health."]
Key facts at a glance
- LOINC
- 14753-8
- Short code
- Glucose 1h p 100 g Glc PO SerPl-sCnc
- Synonyms
- Glucose 1h p 100 g Glc PO SerPl-sCnc
- 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 It’s Done
Your healthcare provider may order this test to monitor blood sugar levels, diagnose conditions like diabetes, or evaluate how your body processes glucose. It’s often used in routine check-ups, before surgeries, or during pregnancy to track metabolic health.
What to Expect
A small blood sample is drawn from your arm, usually in a clinic or lab. The blood is processed to separate plasma, and the glucose level is measured using high-performance liquid chromatography (HPLC). Results are typically ready within a few days.
Normal vs. Abnormal Results
While reference ranges vary by lab, higher or lower than expected glucose levels may signal potential issues like hyperglycemia (high blood sugar) or hypoglycemia (low blood sugar). Your provider will interpret results in the context of your overall health.
How It Affects Health
Chronically high or low glucose levels can impact organs like the heart, kidneys, and nerves. Regular monitoring helps prevent complications and guides treatment plans for conditions like diabetes.
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.
Glucose levels in plasma are critical for diagnosing and managing metabolic disorders. Persistently elevated or low levels may require lifestyle changes, medication, or further medical evaluation to prevent long-term damage.
Short name
Plasma Glucose
Frequently asked questions
What causes abnormal glucose levels?
How often should I get this test?
Can I eat or drink before this 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