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Serum or Plasma Protein Electrophoresis (Qualitative)

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

This test measures the distribution of different protein types in your blood, often used to detect abnormalities like multiple myeloma, liver disease, or other conditions affecting protein production.

Quick summary

["Helps identify unusual protein patterns that may signal underlying health issues."]

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

Key facts at a glance

LOINC
18544-7
Short code
J Pnt ST Amp+20ms L-AVF
Synonyms
J Pnt ST Amp+20ms L-AVF
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ekg
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 This Test Measures

Protein electrophoresis separates blood proteins into bands based on size and electrical charge. This helps doctors spot abnormal protein levels that could indicate conditions like multiple myeloma, liver or kidney disease, or certain immune disorders.

Why It’s Ordered

Your doctor may recommend this test if you have symptoms like unexplained weight loss, fatigue, frequent infections, or signs of organ dysfunction. It’s also used as part of routine screening in certain high-risk groups.

Sample Preparation

A blood sample is drawn into a tube that separates serum or plasma from blood cells. The liquid portion is then analyzed in a lab to create a protein profile.

Common Conditions Detected

Abnormal bands or patterns may reveal conditions such as monoclonal gammopathy (excess of a single protein), benign proteinuria (protein in urine), or metabolic disorders affecting protein synthesis.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Qualitative Protein Electrophoresis

Frequently asked questions

What does a ‘qualitative’ result mean?
A qualitative result provides a descriptive pattern (e.g., bands present/absent) rather than a numerical value. Your doctor will interpret these patterns in the context of your symptoms and medical history.
How long does it take to get results?
Results are typically available within 24 to 48 hours, depending on lab processing times. Follow-up with your healthcare provider to discuss findings.
Can I eat or drink before this test?
No special preparation is needed for this test. However, if you have a history of bleeding disorders, inform your doctor before the draw.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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