Serum Protein Electrophoresis with Bromocresol Green Staining
This test measures the distribution of different protein types in your blood serum using electrophoresis and a dye called bromocresol green. It helps identify abnormalities in protein patterns that may suggest conditions like multiple myeloma, liver disease, or other disorders affecting protein synthesis or breakdown.
["Electrophoresis helps doctors spot unusual protein patterns that could signal hidden health issues."]
Key facts at a glance
- LOINC
- 4567-4
- Short code
- Hgb CSp Bld Ql Elph Acid
- Synonyms
- Hgb CSp Bld Ql Elph Acid
- Category
- hematology
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- Units
- N/A
- Ref low
- 12
- Ref high
- 17.5
- Critical range
- 7 N/A – 20 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- electrophoresis-ph
- CPT
- 85018
- SNOMED
- 900000000000003004
- 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
Why This Test Is Done
Your healthcare provider may order this test if they suspect conditions like multiple myeloma (a cancer of plasma cells), chronic liver disease, or other disorders that alter protein levels in the blood. It’s also used to monitor treatment progress or screen for conditions affecting protein metabolism.
How the Test Works
A small blood sample is drawn and separated into different protein fractions based on size and charge. The bromocresol green dye binds to specific proteins, creating visible bands that indicate their relative amounts. These bands are then analyzed to detect any unusual patterns.
What to Expect Before the Test
No special preparation is needed, but you may want to avoid eating or drinking for a few hours before the blood draw if instructed. Wear a loose shirt for easy access to your arm.
What to Expect During the Test
A healthcare professional will insert a needle into your arm to draw blood. You may feel a slight pinch, but the process usually takes just a few minutes. You can sit or lie down comfortably during the procedure.
Reference range
Adult males: 13.5-17.5 g/dL; Females: 12.0-16.0 g/dLN/A
No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
Protein Electrophoresis (BCG)
Frequently asked questions
What Does an Abnormal Result Mean?
How Often Should I Get This Test?
Can I Fast Before 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