BCG Bromocresol Green Plasma Protein Electrophoresis (Qualitative)
This test measures the distribution of proteins in your plasma using a dye called bromocresol green. It helps assess protein patterns that may indicate conditions affecting protein synthesis, breakdown, or transport in your body.
["This test helps doctors check for protein abnormalities that could signal liver, kidney, or other health issues."]
Key facts at a glance
- LOINC
- 82905-1
- Short code
- t(9;22)(ABL1,BCR)/control Mar-LnRto
- Synonyms
- t(9;22)(ABL1,BCR)/control Mar-LnRto
- Category
- coagulation
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- molgen
- 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
The bromocresol green dye binds to proteins in your plasma differently based on their size and charge. Electrophoresis separates these proteins into bands, allowing for qualitative analysis of their relative concentrations. This process helps identify shifts in protein distribution that may not be detected by standard protein measurements alone.
Why It’s Done
Doctors may order this test to investigate conditions like chronic liver disease, nephrotic syndrome, or other disorders where protein patterns in the bloodstream are altered. It can also be used as part of a broader evaluation for unexplained symptoms such as swelling, fatigue, or changes in lab results.
Sample Collection and Preparation
A blood sample is drawn from a vein, typically in your arm. The plasma portion is separated and prepared for electrophoresis. This test does not require fasting, but your doctor may provide specific instructions.
What to Expect
After your blood is drawn, the plasma is analyzed using electrophoresis, which separates proteins into distinct bands. The results are interpreted qualitatively to determine if protein patterns are within expected ranges or show abnormalities.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal protein electrophoresis patterns may indicate underlying conditions such as multiple myeloma, liver disease, or certain types of kidney disease. For example, a shift in albumin or globulin levels could suggest inflammation, infection, or metabolic disorders. This test is particularly useful for diagnosing or monitoring conditions where protein abnormalities are suspected but not captured by standard tests alone.
Short name
BCG Electrophoresis (Plasma) - Protein Profile
Frequently asked questions
What does a positive or abnormal result mean?
How often should I get this test?
Can I prepare for this test in any way?
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