Hemoglobin A1c (HbA1c) with 24-hour urine collection for quantitative measurement of total urinary hemoglobin
This test measures the amount of hemoglobin (the protein in red blood cells that carries oxygen) found in your urine over a 24-hour period. It helps assess how much hemoglobin is excreted, which can be relevant in certain blood disorders or conditions.
["This test helps monitor hemoglobin loss in urine, which may indicate underlying blood-related conditions."]
Key facts at a glance
- LOINC
- 4560-9
- Short code
- Hgb Bethes Bld Ql
- Synonyms
- Hgb Bethes Bld Ql
- Category
- hematology
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- 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
- CPT
- 85018
- SNOMED
- 900000000000003004
- Specimen volume
- 3 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may order this test if you have symptoms or risk factors for conditions like hemolytic anemia (where red blood cells break down too quickly) or other blood disorders. It may also be used in research or specialized clinical scenarios to track urinary hemoglobin levels.
What to Expect Before the Test
You’ll need to collect all urine for a full 24-hour period. Typically, you’ll start by emptying your bladder at the beginning of the collection period and then collect every urine void until you finish at the end of the day. Store the urine in a cool container if needed.
How the Test Works
The collected urine is analyzed to measure the total amount of hemoglobin present. This is done using a specialized laboratory method to quantify hemoglobin concentration in your urine sample.
What the Results Mean
Results are typically reported as a mass concentration of hemoglobin in urine. While specific reference ranges can vary by lab, higher than expected levels may suggest conditions like hemolysis (destruction of red blood cells) or certain genetic disorders.
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.
Clinical Significance
Short name
HbA1c Urine Hb Quantification
Frequently asked questions
What does my test result indicate?
How often should I get this test?
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