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Protein Electrophoresis Blood Test

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

This test measures the percentage of beta globulin protein in your urine using electrophoresis to help evaluate kidney function.

Quick summary

{"Beta globulin is a protein that normally stays in your blood but can leak into urine when kidneys are damaged","Electrophoresis separates urine proteins to measure how much of the total protein is beta globulin","Results help doctors diagnose and monitor kidney diseases like nephrotic syndrome","The test is performed on a urine sample collected randomly","Higher than normal beta globulin levels in urine may indicate kidney problems"}

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

Key facts at a glance

LOINC
72585-3
Short code
UBETAGLOB
Synonyms
B-Globulin MFr.DF Ur Elph
Category
chemistry
Sample
urine
Container
Sterile, leak-proof urine collection container; 24-hour collection requires preservative-free container kept refrigerated during collection period
Units
N/A
Ref low
6.6
Ref high
13.9
Critical range
7.2 N/A – 7.6 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
electrophoresis
CPT
84165
SNOMED
104118005
Specimen volume
10-50 mL random urine sample or complete 24-hour collection (minimum 10 mL aliquot)
Stability
Ambient: 2 hours; Refrigerated (2-8°C): 7 days; Frozen (-20°C): 1 month. Avoid repeated freeze-thaw cycles.
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
24–72 hours
Order
routine

Protein electrophoresis is a laboratory test that measures the major proteins in your blood, such as albumin and globulins. Doctors use it to help screen for and monitor conditions like multiple myeloma, kidney or liver disease, malnutrition, and certain immune and inflammatory disorders.

The urine beta globulin electrophoresis test measures the amount of beta globulin (a type of blood protein) relative to the total protein in your urine. Normally, kidneys filter waste from blood while keeping important proteins like beta globulin in the bloodstream. When kidneys are damaged, these proteins can leak into urine.

During electrophoresis, an electric current is applied to your blood sample on a special gel. Because each protein has a different size and electrical charge, the proteins move at different speeds and separate into distinct bands that the laboratory can measure and compare against normal patterns.

Electrophoresis is a laboratory technique that separates proteins in a sample based on their electrical charge and size. In this test, your urine sample is placed in a special gel and an electrical current is applied. Different proteins move at different speeds, creating a pattern that shows the proportion of each protein type, including beta globulin.

A health care professional will draw a small sample of blood from a vein in your arm, usually on the inside of the elbow. The procedure takes only a few minutes, and you can return to your normal activities right afterward. The sample is then sent to a laboratory, where it is analyzed and your doctor receives a report.

A urine sample is collected, usually as a random sample (like a routine urine test). No special preparation like fasting is typically needed. The sample is sent to a laboratory where electrophoresis is performed to separate and measure the protein components.

Results show the relative amounts of each protein group in your blood. Unusually high or low levels, or an abnormal band pattern, may point to inflammation, infection, liver or kidney problems, nutritional issues, or abnormal proteins produced by conditions such as multiple myeloma. Your doctor will interpret your results together with your symptoms and other tests to determine what they mean for you.

Results are reported as a percentage showing how much of the total urine protein is beta globulin. Your doctor will interpret these results based on your overall health, other test results, and clinical symptoms. Both low and high percentages can provide important information about kidney function.

Reference range

Beta globulin fraction typically represents 6.6-13.9% of total urine protein in healthy individuals; absolute concentration varies with total protein excretionN/A

Specimen: urine

No special preparation required. First morning void or 24-hour collection preferred for accurate protein quantification. Patient should maintain normal hydration and avoid strenuous exercise prior to collection.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Elevated beta globulin in urine often indicates glomerular kidney disease, where the kidney's filtering units are damaged. This can occur in conditions like glomerulonephritis, nephrotic syndrome, or diabetic nephropathy. The test helps distinguish between different types of proteinuria and can guide treatment decisions. Monitoring beta globulin levels over time helps track disease progression and response to therapy.

This test is typically ordered when a routine urine test shows proteinuria (protein in urine). It helps determine the type and severity of kidney involvement, which is important for proper diagnosis and management of kidney disorders.

Frequently asked questions

Why do I need this test?
Your doctor may order this test if a routine urine test showed protein in your urine. It helps determine if the protein leakage is due to kidney damage and what type of kidney disease may be present.
Is fasting required before this test?
No special preparation is usually needed. You can eat and drink normally before providing a urine sample. However, follow any specific instructions your doctor gives you.
What does a high beta globulin percentage mean?
A higher than normal percentage of beta globulin in urine often indicates glomerular kidney damage, where the kidney's filtering mechanism is allowing proteins to leak through. Your doctor will interpret this in context with your other test results.
Is this test painful?
No. This test only requires a urine sample, which is painless, like a routine urine test.
How long does it take to get results?
Results are typically available within a few days, as the test requires specialized laboratory equipment and analysis by trained technicians.
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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