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Serum or Plasma Protein Electrophoresis (Bromocresol Purple Method)

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

This test measures the different types of proteins in your blood, helping identify abnormalities in protein distribution that may signal conditions like kidney disease, liver problems, or certain cancers.

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
31896-4
Short code
MuV Ag Spt Ql
Synonyms
MuV Ag Spt Ql
Category
chemistry
Sample
sputum
Container
Sterile sputum container
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
3-5 mL
Stability
Room temperature: 2h, Refrigerated: 24h
TAT
4–24 hours
Order
routine

What Does This Test Measure?

Protein electrophoresis separates blood proteins into fractions based on their size and electrical charge. The test detects variations in protein levels, such as albumin, globulins, and other proteins, which can indicate underlying health issues.

Why Might You Need This Test?

Your healthcare provider may order this test if you have symptoms like swelling, unexplained weight loss, fatigue, or if they suspect conditions like multiple myeloma, liver disease, or kidney disease.

Sample Collection and Preparation

A blood sample is drawn from a vein, usually in your arm. The blood is then processed to separate serum or plasma, which is analyzed using a specialized technique to measure protein fractions.

Common Conditions Monitored

This test is often used to monitor conditions like chronic kidney disease, liver cirrhosis, and certain types of cancer. It can also help track treatment responses in patients with protein-related disorders.

Reference range

INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A

Specimen: sputum

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.

Abnormal protein patterns can signal serious health issues. For example, high levels of certain globulins might indicate inflammation or infection, while unusual spikes in specific proteins could suggest malignancies or metabolic disorders. Early detection allows for timely intervention and better management of your condition.

Short name

Protein Electrophoresis

Frequently asked questions

What does a protein electrophoresis test tell me about my health?
It provides detailed information about the types and amounts of proteins in your blood. This can help identify issues like protein imbalances, infections, cancers, or organ dysfunction that might not be detected by standard blood tests alone.
How long does it take to get results from this test?
Results are typically available within 24 to 48 hours, depending on your lab’s processing schedule. Your healthcare provider will discuss the results with you during your follow-up visit.
Can I eat or drink anything before this test?
You can usually eat and drink normally before this test unless your provider gives specific instructions. Blood tests like this do not require fasting, but always follow your provider’s guidance for best accuracy.
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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