Bromocresol Green Protein Electrophoresis (BCG Protein Electrophoresis)
This test measures protein levels in your blood using a technique called bromocresol green electrophoresis. It helps assess the distribution of different protein fractions, including albumin and globulins.
["This test helps identify protein abnormalities that may signal conditions like liver disease, kidney problems, or other metabolic disorders."]
Key facts at a glance
- LOINC
- 33931-7
- Short code
- LPT B burgdorf Bld-Rto
- Synonyms
- LPT B burgdorf Bld-Rto
- Category
- chemistry
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- Units
- N/A
- Ref low
- 0.8
- Ref high
- 1.2
- Critical range
- — – 5 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 85610
- SNOMED
- 396252006
- 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
Bromocresol green electrophoresis separates proteins in your blood based on their size and charge. The test detects how proteins move through a gel when exposed to an electric current, with bromocresol green dye binding to specific protein groups. This helps distinguish between albumin (the main protein in blood plasma) and globulins (proteins involved in immune function and transport).
Why It Might Be Ordered
Your healthcare provider may recommend this test if you have symptoms like unexplained weight loss, fatigue, swelling, or if tests suggest liver, kidney, or immune system issues. It can also be used to monitor chronic conditions like multiple myeloma or other protein-related disorders.
Sample Collection and Preparation
A blood sample is drawn from a vein, usually in your arm. The blood is processed to separate plasma or serum, which is then mixed with bromocresol green dye and placed in an electrophoresis gel. After applying an electric current, the proteins migrate to different positions based on their properties.
What to Expect Before the Test
No special preparation is usually needed, but you may be asked to fast for a few hours before the test if instructed by your provider. Wear comfortable clothing and avoid heavy meals or caffeine on the day of the test.
Reference range
INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A
Inform your healthcare provider if you are taking blood thinners. No special preparation required.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal results may indicate conditions such as liver disease (reduced albumin), immune disorders (elevated globulins), or protein-losing syndromes. For example, low albumin levels could suggest malnutrition or kidney disease, while unusual globulin patterns may signal chronic infections or inflammatory conditions. Always discuss results with your healthcare provider.
Short name
BCG Protein Electrophoresis
Frequently asked questions
How long does it take to get results?
What does a normal result mean?
Can diet affect this test?
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