Serum or Plasma Protein Electrophoresis (Bromocresol Green)
This test measures the distribution of different protein types in your blood, helping identify abnormalities in protein levels that may signal conditions like kidney disease, liver problems, or certain cancers.
["This test helps detect protein imbalances that could indicate underlying health issues."]
Key facts at a glance
- LOINC
- 90262-7
- Short code
- Gram Stn Bifl
- Synonyms
- Gram Stn Bifl
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- gram-stain
- 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 Proteins Does This Test Measure?
Electrophoresis separates blood proteins based on size and charge, revealing patterns in albumin, globulins (including immunoglobulins), and other proteins. Abnormal bands or shifts may point to conditions like multiple myeloma, Waldenström macroglobulinemia, or chronic kidney disease.
Why Might You Need This Test?
Your doctor may order this test if you have symptoms like unexplained weight loss, fatigue, swelling, or if tests for kidney/liver function or cancer screening suggest protein-related issues. It’s also used in monitoring certain treatments.
How Is the Test Performed?
A blood sample is drawn, and the serum or plasma is placed in a gel or paper strip. An electric current separates proteins, creating distinct bands. Results are compared to normal patterns to identify deviations.
What Do Results Mean?
Normal results show balanced protein bands. Abnormal patterns (e.g., extra bands, low albumin, high globulins) may require further testing or evaluation of your medical history and symptoms.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test plays a key role in diagnosing and managing conditions affecting protein metabolism, such as monoclonal gammopathies (e.g., multiple myeloma), liver disease, or nephrotic syndrome. Early detection can guide treatment decisions and improve outcomes.
Short name
Bromocresol Green Protein Electrophoresis
Frequently asked questions
What does a ‘bromocresol green’ method indicate about my test?
Can I eat or drink anything before this test?
Will this test show early signs of cancer?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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