Protein Electrophoresis (Serum) with Bromocresol Green (BCG) Dye
This test measures the distribution of different protein fractions in your blood serum using electrophoresis with a bromocresol green dye. It helps identify abnormalities in protein levels that may indicate conditions like kidney disease, liver disorders, or other metabolic issues.
["This test helps diagnose and monitor conditions affecting protein balance in your body."]
Key facts at a glance
- LOINC
- 106597-8
- Short code
- K pnm DNA Fld Ql NAA+n-prb
- Synonyms
- K pnm DNA Fld Ql NAA+n-prb
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- non-probe-amp-tar
- 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 blood based on size and charge, creating distinct bands. The bromocresol green dye binds to specific protein groups, allowing for qualitative assessment of albumin, globulins, and other fractions. This process helps detect shifts in protein composition that may signal underlying health concerns.
How the Test Works
Your blood is drawn and placed in a gel or medium. An electric current is applied, causing proteins to migrate toward the opposite charge. The BCG dye highlights different protein zones, which are then visually analyzed for relative concentrations.
Common Conditions Monitored
This test is often used to evaluate conditions like multiple myeloma, nephrotic syndrome, liver disease, or chronic kidney disease. Abnormal patterns may indicate excess or deficiency of certain proteins, guiding further medical evaluation.
When You Might Need This Test
Your healthcare provider may order this test if you have symptoms like unexplained weight loss, swelling, fatigue, or if they suspect conditions affecting protein metabolism. It’s also used as part of routine monitoring for certain chronic illnesses.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Serum Protein Electrophoresis (BCG)
Frequently asked questions
Why might my doctor request this test?
What does it mean if my results show abnormal protein bands?
How long does it take to get results?
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