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Serum or plasma protein electrophoresis with bromocresol green dye binding assay

Published: August 9, 2026Updated: August 16, 2026

This test measures the distribution of proteins in your blood using an electrophoresis technique and evaluates protein binding with bromocresol green, often used to assess protein patterns or abnormalities.

Quick summary

["This test helps identify protein abnormalities that may indicate conditions like liver disease, kidney problems, or other metabolic disorders."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
107607-4
Short code
LPT PW Bld-aCnc
Synonyms
LPT PW Bld-aCnc
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Ref low
0.8
Ref high
1.2
Critical range
— – 5 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
85610
SNOMED
396252006
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

Electrophoresis separates blood proteins into different fractions based on their size and electrical charge. Bromocresol green binds to certain proteins, allowing for detailed analysis of protein concentration and distribution across albumin, alpha, beta, and gamma globulin fractions.

Why It’s Done

Your healthcare provider may order this test to diagnose or monitor conditions affecting protein levels, such as liver disease (e.g., cirrhosis), kidney disease, multiple myeloma, or other systemic protein disorders.

Sample Collection and Preparation

A blood sample is drawn from a vein, typically in the arm. The blood is processed to separate serum or plasma, which is then analyzed using electrophoresis and bromocresol green binding to detect protein patterns.

Common Conditions Monitored

This test is particularly useful for detecting abnormalities in protein fractions, such as low albumin (which may indicate malnutrition or liver/kidney disease) or unusual patterns in globulins (which could suggest immune system disorders or chronic inflammation).

Reference range

INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A

Specimen: whole-blood

Inform your healthcare provider if you are taking blood thinners. No special preparation required.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

BCG Protein Electrophoresis

Frequently asked questions

How long does it take to get results?
Results are typically available within 24 to 48 hours, depending on lab processing times. Your healthcare provider will discuss the findings with you during your follow-up visit.
What does a normal result mean?
A normal result shows balanced protein distribution across the expected fractions. However, even normal results may be used as a baseline for monitoring changes over time if you have a known condition.
Can I eat or drink before this test?
You may eat and drink normally before this test unless instructed otherwise. Avoid alcohol for 24 hours before testing, as it may affect protein levels.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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