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Protein Electrophoresis on Serum/Plasma (Qualitative or Semi-Quantitative)

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

This test measures the different types of proteins in your blood, which helps identify abnormalities in protein distribution, such as those seen in conditions like multiple myeloma, liver disease, or certain types of kidney disease.

Quick summary

["Protein electrophoresis helps diagnose and monitor blood protein disorders by separating proteins into distinct bands for analysis."]

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

Key facts at a glance

LOINC
23272-8
Short code
M cap caprip rRNA Spec Ql NAA+probe
Synonyms
M cap caprip rRNA Spec Ql NAA+probe
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
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

What Proteins Does This Test Measure?

Electrophoresis separates blood proteins based on their size and electrical charge. Common protein bands include albumin, alpha-globulins, beta-globulins, and gamma-globulins. Abnormal patterns may indicate conditions affecting protein synthesis, storage, or breakdown.

Why Might You Need This Test?

Your doctor may order this test if you have symptoms like unexplained weight loss, fatigue, swelling, or if they suspect conditions like multiple myeloma, liver disease, or kidney problems. It’s also used to monitor treatment progress in certain diseases.

How Is the Test Performed?

A blood sample is drawn, and the serum or plasma is placed in an electric field. Proteins migrate toward the opposite charge, creating distinct bands that can be analyzed qualitatively (qualitative) or semi-quantitatively (with approximate measurements).

What Does the Test Result Mean?

Results show the distribution of protein bands. For example, an abnormal spike in one band (e.g., M-spike) may suggest multiple myeloma, while altered albumin/globulin ratios could indicate liver or kidney issues. Your doctor will interpret results in the context of your symptoms and medical history.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Protein Electrophoresis

Frequently asked questions

What is the purpose of this test?
This test helps identify abnormal protein patterns in your blood, which can signal conditions like blood cancers, liver disease, or kidney problems. It’s often used to confirm or monitor these conditions.
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 them with you during your follow-up.
Can I eat or drink before this test?
You can eat and drink normally before this test, as it only requires a blood draw. No special preparation is needed unless instructed otherwise by your healthcare provider.
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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