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Protein Electrophoresis, Serum

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

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

Quick summary

["This test helps doctors check for protein imbalances that could indicate health problems."]

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

Key facts at a glance

LOINC
104436-1
Short code
PV1 Ab sp1 Titr Ser IA
Synonyms
PV1 Ab sp1 Titr Ser IA
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ia
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

Why Is This Test Done?

Your healthcare provider may order this test to diagnose or monitor conditions affecting protein levels in your blood, such as kidney disease, liver disorders, or multiple myeloma. It can also help evaluate symptoms like unexplained weight loss, fatigue, or swelling.

What Does the Test Involve?

A blood sample is taken from a vein in your arm. The serum portion is separated and analyzed using electrophoresis, a method that separates proteins based on size and charge. This process helps identify patterns or abnormalities in protein bands.

What Are Common Findings?

Abnormal patterns may show increased or decreased levels of specific proteins, such as albumin, globulins, or immunoglobulins. For example, low albumin could indicate liver or kidney disease, while unusual globulin bands might suggest autoimmune disorders or infections.

How Long Does It Take to Get Results?

Results are typically available within 24 to 48 hours, depending on lab processing times. Your doctor will discuss the findings with you during your follow-up visit.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Protein electrophoresis is crucial for diagnosing and managing conditions like multiple myeloma (a cancer of plasma cells), kidney disease (e.g., nephrotic syndrome), liver diseases (e.g., cirrhosis), and certain autoimmune disorders. It can also help monitor treatment responses or track disease progression.

Short name

Serum Protein Electrophoresis

Frequently asked questions

What does a protein electrophoresis test measure?
This test measures the different types of proteins in your blood, separated by size and electrical charge. It helps identify patterns that may indicate underlying health conditions.
How is the blood sample prepared for this test?
After drawing blood, the serum portion is separated from blood cells and prepared for electrophoresis. This process involves applying the serum to a gel and applying an electric current to separate proteins into distinct bands.
Can I eat or drink before this test?
You may eat and drink normally before the test unless your doctor has specific instructions. Avoiding certain medications or supplements may also be advised, so follow your healthcare provider’s guidance.
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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