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Protein Electrophoresis (Serum/Plasma)

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 multiple myeloma, liver disease, or kidney problems.

Quick summary

["This test helps doctors check for unusual protein patterns that could indicate serious health issues."]

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

Key facts at a glance

LOINC
1882-0
Short code
Deprecated Apo Lp(q) SerPl-mCnc
Synonyms
Deprecated Apo Lp(q) SerPl-mCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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?

Doctors may order this test if you have symptoms like unexplained weight loss, fatigue, swelling, or if they suspect conditions affecting protein production or breakdown in your body. It’s also used to monitor certain chronic diseases or after treatments like chemotherapy.

What Does the Test Involve?

A small blood sample is drawn from a vein in your arm. The blood is then separated into plasma or serum, which is placed on a gel and subjected to an electric current. This separates proteins into bands based on size and charge. Results are compared to a standard pattern to identify any irregularities.

What Are Common Findings?

Normal results show a balanced distribution of proteins across different bands. Abnormal findings may include spikes (e.g., monoclonal bands) that suggest conditions like multiple myeloma, or shifts in other bands that could indicate liver or kidney issues.

What Does This Test Tell Us About My Health?

Protein electrophoresis helps detect conditions that alter protein levels, such as plasma cell dyscrasias (e.g., multiple myeloma), hereditary disorders (e.g., alpha-1 antitrypsin deficiency), or metabolic diseases. It can also assess the effectiveness of treatments targeting protein-related disorders.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Serum/Plasma Protein Electrophoresis

Frequently asked questions

What does a 'spike' or abnormal band on my protein electrophoresis result mean?
A spike or unusual band may indicate a condition like multiple myeloma, where the body produces an excess of a single type of protein (monoclonal gammopathy). This can cause symptoms like bone pain, infections, or fatigue. Your doctor will discuss further testing or treatment options based on these results.
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. Your healthcare provider will contact you with the findings once they are ready, often within a few days of your blood draw.
Can I eat or drink anything before this test?
No special preparation is needed for this test. You can eat and drink normally before your blood draw, as it does not affect the accuracy of the results.
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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