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Bromocresol Green Protein Electrophoresis (Serum)

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

This test measures the distribution of proteins in your blood using a technique called electrophoresis with the Bromocresol Green dye. It helps assess protein patterns, which can indicate conditions affecting protein synthesis or breakdown.

Quick summary

["This test helps doctors check for protein abnormalities that may signal liver, kidney, or other health issues."]

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

Key facts at a glance

LOINC
51537-9
Short code
Silver Birch IgG Ql
Synonyms
Silver Birch IgG Ql
Category
chemistry
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

Electrophoresis separates proteins in your serum based on size and charge. The Bromocresol Green dye binds to different protein fractions, allowing for visual or quantitative analysis of their relative amounts. This includes albumin and globulin fractions, which can shift in diseases like liver disease, inflammation, or certain cancers.

Why It’s Ordered

Your healthcare provider may order this test if you have symptoms like unexplained weight loss, fatigue, swelling, or if tests suggest liver, kidney, or immune system problems. It’s also used in research or monitoring certain chronic conditions.

Preparation

No special preparation is needed, but fasting may not be required unless instructed by your doctor. Bring any medications or supplements you’re taking, as they could affect results.

What to Expect

A small blood sample is drawn from a vein, usually in your arm. The process takes a few minutes, and you may feel slight discomfort. The sample is then sent to a lab for analysis.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

BCG Protein Electrophoresis

Frequently asked questions

How can this test help my doctor?
This test can reveal shifts in protein levels that may indicate conditions like cirrhosis (liver scarring), multiple myeloma (bone marrow cancer), or other protein-related disorders. For example, low albumin might suggest malnutrition or liver disease, while abnormal globulin patterns could hint at immune system issues.
What do abnormal results mean?
Abnormal results don’t always mean a specific diagnosis, but they may prompt further testing. Your doctor will discuss findings with you, including possible next steps like additional blood tests, imaging, or a biopsy if needed.
Can diet or medications affect this test?
Yes, certain medications (e.g., steroids, diuretics) or dietary changes (e.g., high-protein diets) can influence protein levels. Always inform your doctor about all medications, supplements, or recent dietary changes before testing.
  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