Skip to content

Bromocresol Green Protein Electrophoresis (Serum)

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

This test measures protein distribution in your blood using electrophoresis with the bromocresol green dye to assess protein patterns, often used to evaluate conditions affecting protein synthesis or transport.

Quick summary

["This test helps diagnose and monitor 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
7387-4
Short code
Halibut BasoBnd Ab Qn
Synonyms
Halibut 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 blood proteins based on size and charge. The bromocresol green dye binds to specific protein fractions, allowing for visual identification of abnormal patterns. This helps identify conditions like hypoalbuminemia, dysalbuminemia, or other protein-related disorders.

Why It’s Done

Your healthcare provider may order this test if you have symptoms like swelling, unexplained weight loss, or signs of protein loss in urine. It’s also used to monitor conditions like liver disease, kidney disease, or certain cancers.

Common Conditions Evaluated

Abnormal results may indicate issues such as liver dysfunction, kidney disease, or protein-losing syndromes. Low albumin levels or unusual protein bands could signal underlying metabolic or systemic disorders.

Sample Collection

A blood sample is drawn from a vein, typically in your arm. The sample is sent to a lab where it’s processed and analyzed for protein patterns using electrophoresis with bromocresol green.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

BCG Protein Electrophoresis

Frequently asked questions

What does a normal result mean?
A normal result suggests your blood proteins are distributed as expected, with no obvious signs of protein disorders. However, this test alone may not detect mild abnormalities, so follow-up testing might be needed.
How long does it take to get results?
Results are typically available within 1–3 business days, depending on lab processing times. Your provider will discuss findings with you during your follow-up visit.
Can I eat or drink before this test?
No special preparation is needed for this test. However, if you’re fasting for another reason, confirm with your provider to avoid confusion in results.
  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