Bromocresol Purple Protein Electrophoresis (Serum/Plasma)
This test measures protein distribution across different fractions in your blood serum or plasma using bromocresol purple dye binding. It helps identify abnormal protein patterns, such as those seen in conditions like multiple myeloma or severe liver disease.
["This test helps doctors check for unusual protein levels that may signal hidden health issues."]
Key facts at a glance
- LOINC
- 11897-6
- Short code
- GA from BPC
- Synonyms
- GA from BPC
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- us-estimated-from-bpc
- 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 purple dye binds to proteins of varying sizes, creating distinct bands when separated by electrophoresis. Each band represents a group of proteins with similar molecular weights. The test evaluates the relative amounts of these protein groups, including albumin and globulins.
Common Conditions Evaluated
This test is often used to diagnose or monitor conditions affecting protein synthesis, storage, or breakdown. It may be part of a broader evaluation for conditions like multiple myeloma, amyloidosis, or chronic liver disease.
How the Test Works
A small blood sample is drawn and processed into serum or plasma. The sample is then exposed to bromocresol purple dye, which reacts differently with proteins of varying sizes. An electric field separates the proteins, creating visible bands that indicate protein concentration levels.
Why It Matters
Abnormal protein patterns can signal underlying health problems, such as protein loss, overproduction of specific proteins, or dysfunction in organs like the liver or kidneys. Early detection can guide treatment decisions.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test provides critical information for diagnosing and managing conditions that alter protein metabolism, such as plasma cell disorders, liver disease, or systemic protein abnormalities. It helps clinicians assess the severity and progression of these conditions.
Short name
BCP Protein Electrophoresis
Frequently asked questions
Why might my doctor order this test?
What does it mean if my results are abnormal?
How often should I get 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