Protein-bound glucose concentration in plasma (24-hour urine collection)
This test measures the amount of glucose (sugar) that is chemically bound to proteins in your urine over a 24-hour period. It helps assess how your body handles sugar over time, especially in people with diabetes or kidney issues.
["This test helps track long-term sugar control and kidney function in certain conditions."]
Key facts at a glance
- LOINC
- 34546-2
- Short code
- Prot + Glucose Pnl CSF-mCnc
- Synonyms
- Prot + Glucose Pnl CSF-mCnc
- Category
- glucose
- Sample
- csf
- Container
- Sterile tube
- 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
- 1-2 mL
- Stability
- Immediate analysis required, Refrigerated: 1h
- Hemolysis max
- 200
- TAT
- 4–24 hours
- Order
- routine
Why This Test Matters
Protein-bound glucose is a specialized test that detects sugar molecules attached to proteins in urine. Unlike standard urine glucose tests, this method can reveal subtle sugar levels that might not appear in regular urine tests, helping doctors monitor kidney function and diabetes management more precisely.
What to Expect Before the Test
You’ll need to collect all urine for a full 24-hour period, typically starting after midnight and ending the next midnight. Drink plenty of water to help flush out your system. Follow your doctor’s instructions carefully to ensure accurate results.
How the Test Works
Your urine sample is analyzed to measure the concentration of glucose bound to proteins. The test uses a specialized method to detect these protein-bound sugars, which may indicate how well your kidneys are filtering glucose over time.
What the Results Mean
Higher-than-normal levels may suggest kidney problems, diabetes, or other metabolic conditions. Lower-than-normal levels might indicate poor kidney function or other underlying issues. Your doctor will interpret results in the context of your overall health.
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.
◆Associated findings1
Short name
Protein-bound glucose urine test
Frequently asked questions
How often should I get this test?
What are the typical reference ranges?
Can I take medications 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