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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 assess protein patterns, often used to evaluate conditions affecting protein synthesis or transport.

Quick summary

["Helps diagnose protein disorders by showing how proteins separate in your blood."]

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

Key facts at a glance

LOINC
7441-9
Short code
Kiwifruit BasoBnd Ab Qn
Synonyms
Kiwifruit 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

The test uses an electric field to separate proteins in your serum based on size and charge. Bromocresol green dye binds to specific protein fractions, allowing for visual differentiation of albumin, globulins, and other proteins. This helps identify abnormal protein patterns that may indicate conditions like liver disease, kidney problems, or certain immune disorders.

Why It’s Ordered

Your healthcare provider may order this test if you have symptoms like unexplained weight loss, fatigue, swelling, or if they suspect conditions like multiple myeloma, amyloidosis, or chronic liver disease. It’s also used in research or specialized diagnostic settings to monitor protein-related diseases.

Sample Collection and Preparation

A blood sample is drawn from a vein, typically in your arm. The serum (liquid part of blood after clotting) is separated and prepared for analysis. No special preparation is needed, but fasting may be advised depending on your specific situation.

Interpretation and Results

Results show the relative amounts of different protein fractions. Abnormal patterns may indicate low albumin (common in liver/kidney disease) or high globulin levels (possible immune system issues). Your provider will interpret results in the context of your symptoms and medical history.

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 ask for this test?
Your doctor may order this test to investigate unexplained protein abnormalities in your blood, evaluate conditions affecting protein metabolism, or monitor treatment responses for diseases like liver disease or immune disorders. It’s less common than simpler protein tests but provides detailed insights for complex cases.
What does a ‘normal’ result mean?
A ‘normal’ result doesn’t guarantee you’re healthy—it means the protein distribution appears typical for your age and health status. Abnormal results trigger further testing to identify underlying causes, such as liver disease, kidney issues, or protein-related cancers.
Can I prepare for this test?
No special preparation is usually needed, but avoid heavy meals before drawing blood. If your doctor specifies fasting, follow their instructions. The test is quick and typically done at a lab or clinic.
  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