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Beta2glob24hurelphmcnc

Published: August 9, 2026Updated: August 16, 2026

A 24-hour urine test that measures beta 2 globulin proteins using electrophoresis to help evaluate kidney function and detect certain diseases.

Quick summary

{"This test measures beta 2 globulin proteins in a 24-hour urine collection","It helps assess how well your kidneys are filtering and reabsorbing proteins","Elevated levels may indicate kidney damage or disease","The test uses electrophoresis to separate and quantify protein types","Your healthcare provider will interpret results based on your specific condition"}

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
99601-7
Short code
B2GU
Synonyms
Beta2 Glob 24h Ur Elph-mCnc
Category
chemistry
Sample
urine
Container
24-hour urine collection container (sterile, without preservatives preferred; or with appropriate stabilizer per laboratory protocol)
Units
N/A
Ref low
0
Ref high
0.7
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
electrophoresis
CPT
84165
SNOMED
313916003
Specimen volume
Complete 24-hour urine collection; minimum 10 mL aliquot required for testing
Stability
Stable for 7 days at 2-8°C; for longer storage, freeze at -20°C. Avoid repeated freeze-thaw cycles.
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
24–72 hours
Order
routine

What is this test?

The Beta 2 Globulin in Urine test measures the amount of beta 2 globulin proteins in your urine over a 24-hour period. Beta 2 globulins are a group of proteins, including beta-2 microglobulin, that are normally present in small amounts in blood. The kidneys filter these proteins from blood and typically reabsorb them back into the body. When kidneys are functioning properly, very little beta 2 globulin should appear in urine.

How is the test performed?

For this test, you will collect all urine produced over a 24-hour period in a special container provided by your healthcare facility. This is called a 24-hour urine collection. After the collection period, the urine sample is sent to a laboratory where a technique called electrophoresis is used. Electrophoresis separates the different proteins in the urine based on their electrical charge and size, allowing technicians to measure the specific amount of beta 2 globulin present.

Why might I need this test?

Your doctor may order this test if they suspect kidney problems, particularly affecting the kidney tubules (the tiny tubes that reabsorb substances back into the blood). It may also be used to monitor certain conditions that affect protein metabolism, such as multiple myeloma or lymphoma, or to evaluate unexplained protein loss in the urine.

Reference range

Less than 0.7 mg/dL; quantitative interpretation provided relative to total urine protein concentrationN/A

Specimen: urine

No special preparation required. Patient should maintain normal hydration and dietary habits prior to collection. Avoid strenuous exercise before and during the collection period.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings2

Frequently asked questions

Does this test require any special preparation?
Generally, no special preparation is needed. However, follow any specific instructions from your healthcare provider. It is important to collect all urine during the 24-hour period for accurate results. Inform your doctor about any medications or supplements you are taking, as some may affect test results.
Is the 24-hour urine collection painful?
No, collecting urine is not painful. You will simply urinate into a special container provided by your lab or healthcare facility instead of the toilet. The container may be kept refrigerated or in a cool place during the collection period.
What do high levels of beta 2 globulin mean?
High levels may suggest that your kidneys are not properly reabsorbing proteins, which can be a sign of kidney tubular damage or disease. Your healthcare provider will explain what your specific results mean and whether further testing or treatment is needed.
How long does it take to get results?
Results typically take a few days to a week, as the urine sample must be collected, transported to a laboratory, and analyzed using specialized equipment. Your healthcare provider's office will contact you with the results.
  1. 1
    MedlinePlus - Urine ProteinSource
  2. 2
    Mayo Clinic - Kidney Function TestsSource
  3. 3
    National Kidney Foundation - Protein in UrineSource

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.

Medical Disclaimer

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