Bromocresol Green Protein Electrophoresis (Serum)
This test measures protein distribution in your blood using a technique called electrophoresis with bromocresol green dye. It helps assess protein patterns, often used to evaluate conditions affecting protein synthesis or breakdown.
["This test helps doctors check how proteins are balanced in your blood, useful for diagnosing or monitoring conditions like liver disease or protein disorders."]
Key facts at a glance
- LOINC
- 42168-5
- Short code
- FFDM Brst-R Dx
- Synonyms
- FFDM Brst-R Dx
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- mg-ffd
- 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 fractions, allowing for visual or quantitative analysis of different protein bands. This helps identify shifts in protein composition that may indicate underlying health issues.
Common Uses and Clinical Context
This test is primarily used in specialized settings to diagnose or monitor conditions such as liver disease (e.g., cirrhosis), protein-losing syndromes, or certain genetic disorders. It may also be part of a broader evaluation when abnormal protein patterns are suspected.
How the Test Works
A small blood sample is drawn and mixed with bromocresol green dye. The sample is then placed in an electric field, causing proteins to migrate toward the opposite charge. The dye highlights different protein fractions, which are then analyzed to determine their relative amounts.
Preparation for the Test
No special preparation is typically required, but you may be asked to fast for a few hours before the test if instructed by your healthcare provider. Avoiding certain medications or supplements may also be advised, depending on your specific situation.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
BCG Protein Electrophoresis
Frequently asked questions
Why might my doctor order this test?
What does a normal result mean?
What if my results are abnormal?
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