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Bromocresol Green Protein Electrophoresis (Serum)

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

This test measures protein distribution in your blood using an electrophoresis method with bromocresol green dye. It helps assess protein patterns, often used to evaluate 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
75016-6
Short code
t(ABL1,BCR)b3a2 Mar Ql
Synonyms
t(ABL1,BCR)b3a2 Mar Ql
Category
coagulation
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
molgen
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 blood proteins based on size and charge. Bromocresol green dye binds to specific protein fractions, allowing for visual or quantitative analysis of protein bands. This helps identify shifts in protein concentration that could indicate underlying health concerns.

Common Uses and Why It Matters

Protein electrophoresis with bromocresol green is primarily used to screen for conditions like liver disease, nephrotic syndrome, or certain types of protein disorders. It can also assist in diagnosing systemic diseases or monitoring treatment responses.

How the Test Works

A small blood sample is drawn and placed in a gel. An electric current runs through the gel, causing proteins to migrate toward the opposite charge. The dye highlights different protein fractions, which are then analyzed for their relative amounts.

What to Expect Before the Test

No special preparation is usually needed, but you may be asked to fast for 8–12 hours before the test if it involves a fasting sample. Wear comfortable clothing for the blood draw, and inform your doctor about any medications or conditions that could affect results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

BCG Protein Electrophoresis

Frequently asked questions

Why might my doctor order this test?
Your doctor may recommend this test if they suspect liver disease (e.g., cirrhosis), kidney disease, or conditions like multiple myeloma or amyloidosis. It can also help evaluate protein abnormalities in conditions like nephrotic syndrome or inflammatory diseases.
How long will results take?
Results are typically available within 1–3 business days, depending on lab processing times. Follow-up with your healthcare provider to discuss findings.
Can I eat or drink before this test?
For non-fasting tests, you can eat and drink normally. If fasting is required (e.g., for certain protein measurements), avoid food and liquids (except water) for 8–12 hours before the test.
  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