Skip to content

Serum Protein Electrophoresis (Qualitative)

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

This test measures the different types of proteins in your blood using a technique called electrophoresis. It helps identify patterns in protein distribution that may indicate conditions like infections, inflammation, or certain blood disorders.

Quick summary

["Electrophoresis helps doctors spot unusual protein patterns that could signal health concerns."]

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

Key facts at a glance

LOINC
14429-5
Short code
Globulin Smn-mCnc
Synonyms
Globulin Smn-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 Proteins Does This Test Measure?

Electrophoresis separates blood proteins into fractions based on their size and electrical charge. Commonly identified regions include albumin, alpha-globulins, beta-globulins, and gamma-globulins. These groups can reflect underlying health conditions differently.

Why Might You Need This Test?

Doctors may order this test to investigate symptoms like fatigue, swelling, or unexplained weight changes. It’s also used to monitor conditions like multiple myeloma, liver disease, or autoimmune disorders where protein levels may be abnormal.

How Is the Test Performed?

A small blood sample is drawn, and the serum (liquid part of blood) is placed in a gel. An electric current is applied, causing proteins to move toward opposite charges. Stains highlight different protein bands for analysis.

What Could Abnormal Results Mean?

Changes in protein bands may indicate elevated or low levels of specific proteins. For example, high gamma-globulins might suggest immune system issues, while low albumin could point to liver or kidney problems. Results are interpreted by a healthcare provider.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Protein Electrophoresis

Frequently asked questions

What does a protein electrophoresis test involve?
It involves drawing blood and analyzing the separated protein fractions in your serum using an electric field to detect patterns that may signal health issues.
How long does it take to get results from this test?
Results are typically available within 24 to 48 hours, depending on lab processing times and follow-up needs.
Can I eat or drink anything before this test?
No special preparation is needed, but avoid alcohol for 24 hours before testing if advised by your doctor, as it may affect protein levels.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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