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Bromocresol Green Protein Electrophoresis (Serum)

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

This test measures protein distribution in your blood using an electrophoresis method with bromocresol green dye, helping assess conditions affecting protein patterns.

Quick summary

["This test helps identify abnormal protein patterns that may signal underlying health issues."]

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

Key facts at a glance

LOINC
7537-4
Short code
White Oak BasoBnd Ab Qn
Synonyms
White Oak BasoBnd Ab Qn
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
lhr
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

Electrophoresis separates proteins in your serum based on size and charge. Bromocresol green dye binds to specific protein fractions, allowing for visual or quantitative analysis of protein bands. This process helps detect shifts in protein composition that could indicate conditions like inflammation, liver disease, or other metabolic disorders.

How the Test Is Performed

A blood sample is drawn from a vein, typically in your arm. The serum is then prepared and applied to a gel. An electric current is applied to separate proteins by size. The dye binds to proteins, creating visible bands that are analyzed for concentration and distribution.

Common Conditions Monitored

This test may be used to evaluate conditions such as acute-phase reactions, hereditary protein disorders, or to monitor treatment responses in patients with known protein abnormalities.

Sample Collection and Preparation

Your blood is collected in a sterile tube, allowed to clot, and the serum is separated before being processed for electrophoresis. This step ensures accurate protein analysis for the test.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

BCG Protein Electrophoresis

Frequently asked questions

Why might my doctor order this test?
Your doctor may recommend this test if they suspect conditions affecting protein levels, such as liver disease, kidney problems, or hereditary disorders like alpha-1 antitrypsin deficiency. It can also help monitor inflammatory responses or track treatment effectiveness in patients with known protein abnormalities.
What does a result mean?
Abnormal patterns or shifts in protein bands may indicate conditions like liver disease, infections, or metabolic disorders. Your results will be interpreted by a healthcare provider in the context of your overall health and symptoms.
How long will I need to prepare for this test?
No special preparation is needed, but avoid heavy meals before the blood draw. Your healthcare provider will guide you on any specific instructions for your test.
  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