Plasma Protein Electrophoresis (Qualitative) with Bromocresol Green Staining
This test measures the distribution of different protein fractions in your blood plasma using electrophoresis and a dye called bromocresol green. It helps identify abnormal protein patterns that may suggest conditions like multiple myeloma, liver disease, or other protein-related disorders.
["This test helps diagnose and monitor conditions affecting protein levels in your blood."]
Key facts at a glance
- LOINC
- 37621-0
- Short code
- XR Pelvis AP+Obl
- Synonyms
- XR Pelvis AP+Obl
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- xr
- 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 Does This Test Measure?
Electrophoresis separates proteins in your blood plasma based on size and electrical charge. Bromocresol green dye binds to specific protein groups, allowing for qualitative assessment of albumin, alpha, beta, and gamma globulin fractions. Abnormal patterns may indicate conditions like multiple myeloma, liver disease, or immune system disorders.
Why Might Your Doctor Order This Test?
Your doctor may recommend this test if you have symptoms like unexplained weight loss, fatigue, frequent infections, or swelling. It’s also used to monitor known conditions affecting protein levels, such as chronic liver disease or certain cancers.
Common Conditions Monitored or Diagnosed
This test can help detect abnormal protein levels that may signal multiple myeloma, lymphoma, or other blood-related cancers. It may also identify liver or kidney disorders that alter protein production or clearance.
What to Expect Before the Test
No special preparation is needed. You’ll provide a blood sample, usually drawn from a vein in your arm. The test involves minimal discomfort and is typically done in a clinic or lab setting.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Qualitative Protein Electrophoresis (BCG)
Frequently asked questions
What does a qualitative protein electrophoresis test involve?
How long does it take to get results from this test?
Can this test be used to diagnose cancer?
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