Protein Electrophoresis (Serum/Plasma) with Bromocresol Green Dye Binding
This test measures the distribution of different protein fractions in your blood using electrophoresis and a dye that binds to specific protein types. It helps identify abnormalities in protein levels that may indicate conditions like kidney disease, liver problems, or certain cancers.
["This test helps diagnose and monitor conditions affecting protein balance in your blood."]
Key facts at a glance
- LOINC
- 76666-7
- Short code
- Prot tube2 CSF-mCnc
- Synonyms
- Prot tube2 CSF-mCnc
- Category
- chemistry
- Sample
- csf
- Container
- Sterile tube
- Units
- N/A
- Ref low
- 20
- Ref high
- 400
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 82670
- Specimen volume
- 1-2 mL
- Stability
- Immediate analysis required, Refrigerated: 1h
- Hemolysis max
- 200
- TAT
- 4–24 hours
- Order
- routine
What Proteins Does This Test Measure?
Electrophoresis separates proteins based on size and charge, creating distinct bands. Bromocresol Green binds to albumin and globulins, allowing for qualitative assessment of these protein groups. While not all protein levels are quantified numerically, patterns can reveal imbalances.
Why Might You Need This Test?
This test is often used to screen for conditions like multiple myeloma (a cancer of plasma cells), nephrotic syndrome (kidney disease causing protein loss), or liver disease. It may also be part of routine monitoring for patients with chronic illnesses.
Sample Collection and Preparation
A blood sample is drawn from your vein, typically in the arm. The blood is processed to separate serum or plasma, which is then analyzed. No special preparation is needed, but fasting may be advised depending on your specific test order.
What to Expect During the Test
The process is quick and usually painless. You may feel slight discomfort at the needle insertion site, but most people tolerate it well. Results are typically available within 24–48 hours, depending on lab processing times.
Reference range
Premenopausal: 20-400 pg/mL; Postmenopausal: <30 pg/mLN/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.
◆Associated findings1
Short name
BCG Protein Electrophoresis
Frequently asked questions
What does a 'qualitative' result mean?
How often should I get 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