Alpha-2-Globulin, 24-Hour Urine — Electrophoresis, Mass Fraction
Measures the alpha-2-globulin fraction in protein collected from urine over 24 hours using electrophoresis to help evaluate urinary protein patterns.
["This test evaluates how much alpha-2-globulin is being lost in the urine over a full day."]
Key facts at a glance
- LOINC
- 72588-7
- Short code
- Alpha2 Glob 24h MFr.DF Ur Elph
- Synonyms
- Alpha2 Glob 24h MFr.DF Ur Elph
- Category
- liver
- Sample
- urine
- Container
- Sterile urine container
- Units
- N/A
- Ref low
- 44
- Ref high
- 147
- Critical range
- 7.2 N/A – 7.6 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- electrophoresis
- CPT
- 84075
- SNOMED
- 27550007
- 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
What is this test?
This test measures alpha-2-globulin, a protein, in urine collected for 24 hours. Electrophoresis separates urinary proteins into fractions so the relative amount of alpha-2-globulin can be assessed.
Why might I need this test?
It may be ordered as part of a 24-hour urine protein evaluation when there is concern about kidney disease, increased urinary protein loss, or an unusual urine protein pattern. It is usually interpreted with other urine and blood test results.
How is the test performed?
You collect all urine for exactly 24 hours using the container and instructions provided by the laboratory. The laboratory then measures the amount of protein and uses electrophoresis to determine the alpha-2-globulin fraction.
How do I prepare for the test?
No fasting is usually required. Follow the laboratory's 24-hour collection instructions carefully, and tell your clinician if you have fever, illness, vigorous exercise, menstruation, or major changes in medication before or during collection.
Reference range
Adult: 44-147 U/LN/A
No special preparation required. Avoid fatty meals before the test if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
An abnormal alpha-2-globulin fraction may occur with inflammation, changes in blood protein levels, liver conditions, or altered kidney filtering. The finding is not diagnostic by itself and should be interpreted with total urine protein, urine albumin, kidney function tests, and your clinical history.
Short name
24-Hour Urine Alpha-2-Globulin
Frequently asked questions
Is fasting required for this test?
What does an abnormal result mean?
Can this test be performed on a regular urine sample?
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