Serum or Plasma Protein Electrophoresis (Qualitative) with Bromocresol Green Staining
This test measures the distribution of different protein fractions in your blood using a dye called bromocresol green. It helps identify abnormal protein patterns that may signal conditions like multiple myeloma, lymphoma, or other blood disorders.
["This test helps doctors check for unusual protein levels that could indicate serious blood diseases."]
Key facts at a glance
- LOINC
- 47508-7
- Short code
- S pneum Da 9V IgG 2:1 Ser-Rto
- Synonyms
- S pneum Da 9V IgG 2:1 Ser-Rto
- Category
- coagulation
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 82784
- 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 green dye binds to specific protein groups in your blood, separating them into bands based on size and charge. This qualitative method helps visualize the relative amounts of albumin, globulins, and other proteins, which can be useful for detecting abnormalities in protein composition.
Why It’s Done
Your healthcare provider may order this test if you have symptoms like unexplained weight loss, fatigue, or swollen lymph nodes. It’s also used to monitor conditions like multiple myeloma, lymphoma, or other disorders affecting protein levels in the blood.
Sample Collection and Preparation
A blood sample is drawn from a vein, usually in your arm. The blood is then processed to separate serum or plasma, which is tested with bromocresol green dye. The results are interpreted as qualitative bands rather than precise measurements.
Interpreting Results
Results are presented as distinct bands (e.g., albumin, alpha, beta, gamma globulins) that show relative protein concentrations. Abnormal patterns may indicate conditions like monoclonal gammopathy, infections, or inflammatory diseases.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test is primarily qualitative and used for detecting abnormal protein profiles that may signal underlying diseases. While not a diagnostic test on its own, it can guide further testing (e.g., immunofixation electrophoresis) for conditions like multiple myeloma or plasma cell disorders. Results should always be reviewed by a healthcare professional in the context of your symptoms and medical history.
Short name
Bromocresol Green Protein Electrophoresis
Frequently asked questions
What does a positive or abnormal result mean?
How long does it take to get results?
Can I eat or drink anything 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