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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 electrophoresis with bromocresol green dye to separate and analyze protein fractions.

Quick summary

["Helps assess protein patterns that may indicate conditions like liver disease or kidney problems."]

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

Key facts at a glance

LOINC
32005-1
Short code
C trach B Ab Titr Ser
Synonyms
C trach B Ab Titr Ser
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 This Test Measures

Electrophoresis separates proteins in your serum based on size and charge. Bromocresol green dye binds to specific protein groups, allowing for visual or quantitative analysis of protein bands. This helps identify abnormal protein distributions that could signal underlying health issues.

Common Uses

This test is often used to diagnose or monitor conditions affecting protein metabolism, such as liver disease (e.g., cirrhosis), kidney disease, or certain genetic disorders. It may also be part of a broader evaluation for unexplained protein abnormalities in blood.

How the Test Works

A small blood sample is drawn and placed in a gel or medium. An electric current is applied, causing proteins to migrate toward the opposite charge. The dye binds to proteins, creating distinct bands that represent different protein types. These bands are then analyzed for patterns or abnormalities.

Preparation Tips

No special preparation is usually needed, but avoid heavy meals or excessive alcohol 24 hours before the test. Hydration may be encouraged, but check with your healthcare provider first.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

BCG Protein Electrophoresis

Frequently asked questions

Why might I need this test?
Your doctor may recommend this test if you have symptoms like fatigue, swelling, or unexplained weight changes, or if they suspect liver, kidney, or metabolic disorders.
What does a normal result mean?
A normal result typically shows balanced protein distribution with expected band patterns. However, individual results depend on your overall health and medical history—always review findings with your provider.
How long will it take to get results?
Results are usually available within 1 to 3 business days, depending on lab processing times.
  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