Hemoglobin A1c (HbA1c) with 24-Hour Urine Collection for Quantitative Measurement
This test measures your body’s average blood sugar levels over the past 2–3 months, using both blood and urine samples. It helps assess long-term glucose control, particularly in patients suspected of having abnormal urine hemoglobin or related conditions.
["This test helps track how well your blood sugar is managed over time, especially if you have diabetes or suspected hemolytic conditions."]
Key facts at a glance
- LOINC
- 57751-0
- Short code
- Hgb Ur Ql Strip.auto
- Synonyms
- Hgb Ur Ql Strip.auto
- Category
- hematology
- Sample
- urine
- Container
- Sterile urine container
- Units
- N/A
- Ref low
- 12
- Ref high
- 17.5
- Critical range
- 7 N/A – 20 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- test-strip-automated
- CPT
- 85018
- SNOMED
- 900000000000003004
- Specimen volume
- 10 mL
- Stability
- Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
Why This Test Is Done
Your healthcare provider may order this test if you have symptoms of diabetes, hemolytic anemia, or unexplained urine changes. It’s also used to confirm or monitor conditions affecting red blood cell breakdown or glucose metabolism.
How the Test Works
A 24-hour urine sample is collected to measure hemoglobin-related substances. The test combines urine analysis with a standard HbA1c measurement to detect subtle metabolic or hemolytic disturbances that standard blood tests might miss.
What to Expect Before the Test
No special preparation is needed beyond collecting a full 24-hour urine sample (starting and ending at the same time). Drink plenty of water to ensure adequate urine volume. Avoid smoking or certain medications that may affect urine composition.
What to Expect During the Test
You’ll provide a urine sample at home or in a lab, following instructions to collect all urine for 24 hours. The sample is then analyzed to detect hemoglobin or related breakdown products.
Reference range
Adult males: 13.5-17.5 g/dL; Females: 12.0-16.0 g/dLN/A
No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test is particularly useful for identifying hemolytic anemia (where red blood cells break down too quickly) or conditions like glucose-6-phosphate dehydrogenase (G6PD) deficiency, which can cause abnormal urine hemoglobin. It also helps assess chronic diabetes management by cross-referencing urine and blood glucose trends.
Short name
HbA1c Urine Test (24h)
Frequently asked questions
Why might my doctor recommend this test?
What does a positive or abnormal result mean?
How often should I get 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