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Comprehensive Diagnostic Serum Protein Electrophoresis with Bromocresol Green Staining

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

This test measures the distribution of proteins in your blood serum using electrophoresis and a dye (bromocresol green) to help identify abnormal protein patterns, which may indicate conditions like inflammation, infections, or inherited disorders.

Quick summary

["This test helps diagnose and monitor conditions affecting protein balance in your blood."]

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

Key facts at a glance

LOINC
111927-0
Short code
Comprehensive diagnosis SB Endscpy
Synonyms
Comprehensive diagnosis SB Endscpy
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
endoscopy
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 their size and electrical charge, creating distinct bands. Bromocresol green dye binds to certain proteins, allowing for visual differentiation. This process helps identify abnormal protein levels or patterns, such as those seen in conditions like multiple myeloma, liver disease, or chronic inflammation.

Why It’s Ordered

Your healthcare provider may recommend this test if you have symptoms like unexplained weight loss, fatigue, swollen glands, or signs of organ dysfunction. It’s also used to monitor conditions like autoimmune diseases, infections, or inherited metabolic disorders.

How the Test Works

A blood sample is drawn and placed in an electric field, causing proteins to migrate toward the opposite charge. The dye highlights specific protein fractions, creating a profile that reflects their relative amounts.

Sample Preparation

The test uses serum (liquid part of blood after clotting) collected from a vein. No special preparation is needed, but fasting may be advised depending on your provider’s instructions.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Frequently asked questions

How might abnormal results affect my health?
Abnormal protein patterns can signal underlying issues such as protein loss (e.g., nephrotic syndrome), overproduction of specific proteins (e.g., monoclonal gammopathy), or metabolic imbalances. Early detection can guide treatment decisions for conditions like liver disease, infections, or genetic disorders.
What does it mean if my results are normal?
Normal results suggest your protein balance is within expected ranges, but they don’t rule out all conditions. If you have symptoms, further testing may still be needed to investigate potential causes.
How often should I get this test?
Frequency depends on your health condition. Your provider will determine how often to repeat this test based on your diagnosis, symptoms, or treatment plan.
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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