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Bromocresol Green Protein Electrophoresis (BCG Protein Electrophoresis)

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

This test measures protein levels in your blood using an electrophoresis method with bromocresol green dye to separate and analyze protein fractions.

Quick summary

["This test helps assess protein distribution in your blood, useful for diagnosing conditions affecting protein synthesis or breakdown."]

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

Key facts at a glance

LOINC
24556-3
Short code
MR Abd
Synonyms
MR Abd
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
mr
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 This Test Measures

Electrophoresis separates blood proteins based on size and charge, allowing for detailed analysis of albumin, globulins, and other proteins. Bromocresol green dye binds to proteins to help identify specific fractions.

Why It’s Done

Doctors may order this test to evaluate conditions like liver disease, kidney disease, or protein malnutrition, where abnormal protein patterns can indicate underlying issues.

Common Uses

It’s often used in research or specialized clinical settings to study protein composition, though it’s less common in routine patient care compared to simpler protein tests.

Sample Collection

A blood sample is drawn from a vein, typically in the arm. The sample is processed to separate proteins for analysis, often requiring specialized lab techniques.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

BCG Protein Electrophoresis

Frequently asked questions

How might my results affect my health?
Abnormal protein patterns may suggest conditions like hypoalbuminemia (low albumin), hyperglobulinemia (high globulins), or systemic diseases affecting protein metabolism. Consult your doctor for interpretation.
What does a normal result mean?
Normal results typically show balanced protein fractions, but reference ranges vary by lab and method. Your doctor will compare results to your specific health needs.
Can I prepare for this test?
No special preparation is needed, but avoid heavy meals 2 hours before the draw. If you’re on blood thinners, inform your lab staff.
  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