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Bromocresol Green Protein Electrophoresis (Serum/Plasma)

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

This test measures protein distribution in your blood using an electrophoresis method with bromocresol green dye to assess albumin and globulin fractions.

Quick summary

["Helps diagnose conditions affecting protein balance in your bloodstream."]

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

Key facts at a glance

LOINC
77487-7
Short code
Deprecated Hind+Mid ft-Bl XR Broden
Synonyms
Deprecated Hind+Mid ft-Bl XR Broden
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 Is This Test Used For?

Electrophoresis separates blood proteins by size and charge, allowing doctors to evaluate how well albumin (the main protein supporting blood volume) and globulins (proteins involved in immunity and transport) are balanced. This can help identify conditions like liver disease, kidney problems, or inflammatory disorders.

How Is the Sample Collected?

A blood sample is drawn from a vein, typically in your arm. The blood is then processed to separate serum or plasma for testing.

What Might Abnormal Results Indicate?

Low albumin levels may suggest malnutrition, liver disease, or kidney problems, while abnormal globulin patterns could point to infections, autoimmune diseases, or certain cancers.

Preparation for the Test

No special preparation is needed, but inform your doctor about any medications or recent illnesses that could affect results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: This test is primarily used to assess protein electrophoresis patterns, which can reveal imbalances in albumin and globulin fractions. Abnormal results may indicate underlying conditions such as liver disease, kidney dysfunction, or chronic inflammation. It is often part of a broader evaluation for conditions affecting protein metabolism.

Short name

BCG Protein Electrophoresis

Frequently asked questions

Why was this test ordered?
Your doctor may have ordered this test to investigate symptoms like fatigue, swelling, frequent infections, or unexplained weight changes. It can also help diagnose conditions like liver disease, kidney disease, or certain autoimmune disorders.
What are the typical reference ranges?
Reference ranges for protein electrophoresis vary by lab and may not be provided in plain language. Your results will be compared to your specific lab’s standards, and your doctor will interpret them in the context of your overall health.
Can I eat or drink before this test?
You can eat and drink normally as no fasting is required for this test. However, always follow your doctor’s specific instructions for any medications or supplements you take.
  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