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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 electrical charge.

Quick summary

["It helps identify abnormal protein patterns that may signal conditions like multiple myeloma, liver disease, or other disorders."]

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

Key facts at a glance

LOINC
50797-0
Short code
M Protein 4 SerPl Elph-mCnc
Synonyms
M Protein 4 SerPl Elph-mCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
electrophoresis
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 separates blood proteins into distinct bands, each representing a group of proteins with similar electrical charges. This includes albumin, globulins (such as immunoglobulins), and other fractions like alpha, beta, and gamma globulins. The test helps detect shifts in these fractions that may indicate underlying health issues.

Why Might You Need This Test?

Your healthcare provider may order this test if you have symptoms like unexplained weight loss, fatigue, swollen glands, or signs of organ dysfunction. It’s also used to monitor conditions like multiple myeloma, chronic liver disease, or kidney problems where protein levels or patterns may be abnormal.

Sample Collection and Preparation

A blood sample is drawn from a vein, typically in your arm. The blood is processed to separate serum (the liquid part after clotting) for testing. No special preparation is needed, but fasting may be advised depending on your provider’s instructions.

What Are Common Findings?

Abnormal results may show increased or decreased levels of specific protein bands. For example, a spike in one band (e.g., monoclonal gammopathy) might suggest multiple myeloma, while a reduced albumin level could indicate liver or kidney disease. Your provider will interpret these findings in the context of your symptoms and medical history.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Serum Protein Electrophoresis

Frequently asked questions

What does a 'protein band' or 'globulin spike' mean on my results?
A protein band refers to a distinct group of proteins separated during electrophoresis. A spike or unusual pattern in one band (e.g., a monoclonal spike) may indicate an abnormal protein production, such as in multiple myeloma or other plasma cell disorders. Your healthcare provider will explain what these findings mean for your specific situation.
Do I need to fast before this test?
No fasting is typically required for this test. However, always follow your healthcare provider’s specific instructions, as some tests may have exceptions. If you’re unsure, ask your provider before your appointment.
How long does it take to get results from this test?
Results from serum protein electrophoresis are usually available within 1 to 3 business days, depending on your lab’s processing time. Your provider will discuss the findings with you once they are ready, often in a follow-up visit.
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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