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Serum Protein Electrophoresis (Qualitative)

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

This test measures the different types of proteins in your blood using electrophoresis, a method that separates proteins based on size and charge. It helps identify abnormalities in protein distribution, which can indicate conditions like multiple myeloma, liver disease, or other disorders.

Quick summary

["Electrophoresis helps doctors spot unusual protein patterns that may signal hidden health issues."]

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

Key facts at a glance

LOINC
14428-7
Short code
Globulin Prt-mCnc
Synonyms
Globulin Prt-mCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What Does This Test Measure?

Electrophoresis splits blood proteins into five main zones: albumin, alpha-1 globulins, alpha-2 globulins, beta globulins, and gamma globulins. Each zone contains proteins with distinct functions, such as antibodies, enzymes, and transport proteins. Abnormal patterns may reveal conditions affecting protein production or storage.

Why Might You Need This Test?

Your doctor may order this test if you have symptoms like unexplained weight loss, fatigue, swelling, or if they suspect conditions like multiple myeloma, lymphoma, liver disease, or kidney problems. It’s also used to monitor treatment progress for certain blood disorders.

How Is This Test Performed?

A small blood sample is drawn from a vein, usually in your arm. The serum (liquid part of blood without clots) is then placed in a gel and subjected to an electric current. Proteins move toward the opposite charge, creating distinct bands that can be analyzed under light.

What Are Common Findings?

Normal results show balanced protein bands. Abnormal findings might include a spike in gamma globulins (indicating high antibody levels), a reduced albumin band (suggesting liver or kidney issues), or unusual bands that could signal protein disorders.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Protein Electrophoresis (Serum)

Frequently asked questions

How often will I need this test?
This test is typically done once or twice a year if you have a known condition affecting proteins, such as multiple myeloma or liver disease. Otherwise, it’s usually ordered as needed for specific symptoms or diagnostic questions.
What do my results mean if they’re outside of normal ranges?
If your results show unusual protein patterns, your doctor will discuss them with you. They may recommend further testing or treatments based on the specific findings, such as bone marrow tests for multiple myeloma or liver function tests for liver disease.
Can I prepare for this test?
No special preparation is needed. You can eat and drink normally before the test, and you may be asked to fast for 8–12 hours if your doctor orders a fasting sample for additional tests.
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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