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Cerebrospinal Fluid Protein by Electrophoresis (Qualitative)

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

This test measures the types and amounts of proteins found in your cerebrospinal fluid (CSF), which surrounds your brain and spinal cord. It helps identify abnormalities that may suggest conditions like multiple sclerosis, infections, or other neurological issues.

Quick summary

["This test helps diagnose or monitor conditions affecting brain and nerve function."]

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

Key facts at a glance

LOINC
109789-8
Short code
MuV Ab Msmt CSF
Synonyms
MuV Ab Msmt CSF
Category
chemistry
Sample
csf
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
1-2 mL
Stability
Immediate analysis required, Refrigerated: 1h
Hemolysis max
200
TAT
4–24 hours
Order
routine

What Does This Test Measure?

Electrophoresis separates proteins in your CSF based on size and electrical charge. This qualitative test detects abnormal protein patterns, such as elevated immunoglobulin bands, which may indicate conditions like multiple sclerosis or other inflammatory or infectious processes.

Why Might You Need This Test?

Your doctor may order this test if you have symptoms like vision problems, numbness, weakness, or other neurological signs. It can also be used to monitor known conditions affecting the central nervous system.

Common Conditions Monitored or Diagnosed

Abnormal protein patterns may suggest conditions like multiple sclerosis (where immunoglobulin G bands appear), infections (such as bacterial meningitis), or other neurological disorders. The test helps confirm or rule out these possibilities.

How Is the Sample Collected?

A small amount of CSF is collected through a procedure called a lumbar puncture (spinal tap). A doctor inserts a needle into your lower back to draw the fluid into a sterile container.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test plays a key role in diagnosing and managing neurological conditions by identifying abnormal protein levels and patterns in CSF. It helps guide treatment decisions and monitor disease progression.

Short name

CSF Protein Electrophoresis (Qualitative)

Frequently asked questions

What does a positive or abnormal result mean?
An abnormal result may indicate an underlying neurological condition, such as multiple sclerosis, infections, or other inflammatory diseases. Your doctor will discuss the results with you and may recommend further testing or treatment.
How long does it take to get results?
Results are typically available within a few days to a week, depending on lab processing times. Your doctor will contact you once the results are ready.
Can I eat or drink before this test?
You may eat and drink normally before this test, as it does not require fasting. However, follow any specific instructions your doctor provides for your procedure.
  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