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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 a technique called electrophoresis with the bromocresol green dye. It helps assess protein patterns, which can indicate conditions affecting protein synthesis, breakdown, or transport in your body.

Quick summary

["This test helps doctors evaluate protein abnormalities that may signal underlying health concerns."]

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

Key facts at a glance

LOINC
49677-8
Short code
LPT 1 umol Be 7D Bld-Rto
Synonyms
LPT 1 umol Be 7D Bld-Rto
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 proteins in your serum based on size and charge. The bromocresol green dye binds to specific protein fractions, allowing for visual differentiation of protein bands. This process helps identify shifts in protein composition that might not be detected by general protein tests alone.

Why It’s Performed

Doctors may order this test if you have symptoms like fatigue, swelling, or unexplained weight changes that could relate to protein disorders. It’s also used to monitor conditions like multiple myeloma, liver disease, or kidney problems where protein balance is critical.

Sample Collection and Preparation

A blood sample is drawn from a vein, typically in your arm. The serum portion is separated and prepared for electrophoresis. No special preparation is needed, but fasting may be advised depending on your doctor’s instructions.

Common Conditions Monitored

This test helps diagnose or monitor conditions like hypoalbuminemia (low albumin), dysproteinemias (abnormal protein levels), or conditions affecting plasma proteins such as nephrotic syndrome or chronic liver disease.

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 from this test?
Results are usually available within 24 to 48 hours, depending on lab processing times. Your doctor will discuss the findings with you during your follow-up visit.
What does it mean if my protein bands look abnormal?
Abnormal bands may indicate an excess of certain proteins (like monoclonal gammopathies) or deficiencies in others (like albumin). Your doctor will interpret the results in the context of your symptoms and medical history to determine next steps.
Can I eat or drink before this test?
Typically, no special diet is required, but your doctor may advise fasting for other related tests. Always follow your healthcare provider’s instructions for sample collection.
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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