Serum/Plasma Protein Electrophoresis by Bromocresol Purple (BCP) Method
This test measures the distribution of different protein fractions in your blood, helping identify abnormalities in protein levels that may signal conditions like multiple myeloma, liver disease, or kidney problems.
["This test helps doctors check for unusual protein patterns that could indicate hidden health issues."]
Key facts at a glance
- LOINC
- 100841-6
- Short code
- Zic4 Ab CSF Ql Line blot
- Synonyms
- Zic4 Ab CSF Ql Line blot
- Category
- chemistry
- Sample
- csf
- Container
- Sterile tube
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- line-blot
- Specimen volume
- 1-2 mL
- Stability
- Immediate analysis required, Refrigerated: 1h
- Hemolysis max
- 200
- TAT
- 4–24 hours
- Order
- routine
What Does This Test Measure?
The test separates blood proteins into categories—such as albumin, globulins, and other fractions—using a technique called electrophoresis. Bromocresol purple dye binds to proteins, allowing for visual differentiation of each protein group based on their size and charge.
Why Might Your Doctor Order This Test?
Your doctor may recommend this test if they suspect conditions like multiple myeloma (cancer of plasma cells), chronic liver disease, kidney disease, or certain autoimmune disorders. It can also help monitor treatment progress for these conditions.
How Is the Sample Collected?
A small blood sample is drawn from a vein, usually in your arm. The blood is then processed to separate the serum or plasma for testing.
What Are Common Results and Findings?
Results show the relative amounts of each protein fraction. For example, an abnormal spike in one fraction (like monoclonal bands in multiple myeloma) or a shift in albumin-to-globulin ratio may indicate underlying health concerns.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test plays a key role in diagnosing and managing conditions affecting protein production or breakdown. It helps detect hidden protein abnormalities that might not show up in routine blood tests, guiding treatment decisions for conditions like cancer, liver disease, or immune disorders.
Short name
Protein Electrophoresis
Frequently asked questions
What does a protein electrophoresis test show?
How long does it take to get results from this test?
Can I eat or drink 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