Skip to content

Plasma or Serum Protein Electrophoresis (Qualitative)

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

This test measures the different types of proteins in your blood, separated by size and charge. It helps identify abnormalities that may indicate conditions like multiple myeloma, liver disease, or other protein disorders.

Quick summary

["Protein electrophoresis helps diagnose and monitor blood protein disorders."]

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

Key facts at a glance

LOINC
70245-6
Short code
PAH p.R408W Bld/T Ql
Synonyms
PAH p.R408W Bld/T Ql
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
molgen
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

Why Is This Test Done?

Your healthcare provider may order this test if they suspect conditions affecting protein levels, such as kidney disease, liver problems, or certain cancers. It can also be used to monitor treatment progress for conditions like multiple myeloma or autoimmune disorders.

How Is the Sample Collected?

A blood sample is drawn from a vein, usually in your arm. The blood is then processed to separate the plasma or serum for analysis. No special preparation is needed, but fasting may be advised depending on your specific test instructions.

What Does the Test Involve?

The blood sample is placed on a gel and subjected to an electric current. Proteins move toward the opposite charge based on their size and charge, creating distinct bands. These bands are then analyzed to identify abnormal protein patterns.

What Are Common Findings?

Abnormal bands or patterns may indicate conditions such as monoclonal gammopathy (e.g., multiple myeloma), hypoalbuminemia, or increased globulins. These findings can guide further testing or treatment planning.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Protein Electrophoresis

Frequently asked questions

What does a protein electrophoresis test measure?
It measures the distribution and concentration of different protein types in your blood, separated by size and electrical charge. This helps identify any unusual patterns that may signal underlying health issues.
How long does it take to get results from this test?
Results are typically available within 24 to 48 hours, depending on lab processing times and whether additional follow-up tests are needed. Your healthcare provider will discuss the results with you.
Can I eat or drink before this test?
Follow your healthcare provider’s instructions, but generally, no special diet is required unless specified. Fasting may be advised for certain related tests; always confirm with your provider.
  1. 1
  2. 2
  3. 3

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