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Cerebrospinal Fluid Total Protein by Electrophoresis

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

This test measures the total protein content in your cerebrospinal fluid (CSF), which is the fluid surrounding your brain and spinal cord. It helps assess conditions affecting the brain’s protective barrier or blood-brain barrier.

Quick summary

["A protein analysis in CSF can help diagnose or monitor neurological conditions."]

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

Key facts at a glance

LOINC
31133-2
Short code
MuV V Ab Titr CSF
Synonyms
MuV V Ab Titr 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 Is Cerebrospinal Fluid (CSF)?

CSF is a clear fluid that cushions your brain and spinal cord, providing nutrients and removing waste. When proteins leak into the CSF due to injury, infection, or disease, it can signal underlying issues like inflammation, tumors, or bleeding.

Why Is This Test Done?

Your doctor may order this test to investigate symptoms such as headaches, seizures, vision changes, or neurological deficits. It’s also used to diagnose conditions like meningitis, multiple sclerosis, or brain tumors.

How Is the Test Performed?

A small sample of CSF is collected via a spinal tap (lumbar puncture). The fluid is then analyzed using electrophoresis to separate and measure protein components, including total protein levels.

What Are Common Conditions Monitored?

This test helps identify abnormal protein patterns linked to conditions such as Guillain-Barré syndrome, subarachnoid hemorrhage, or certain types of brain tumors. Elevated or abnormal protein levels may indicate inflammation, infection, or structural damage.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical significance: Elevated total protein in CSF is often associated with blood-brain barrier disruption, infections, or demyelinating diseases. Low protein levels may suggest reduced production or increased loss, but interpretation depends on clinical context and other test results.

Short name

CSF Protein Profile

Frequently asked questions

What does a high or low protein result mean?
A high protein result may signal inflammation, infection, or a blood-brain barrier issue. A low result could indicate a rare condition or technical factors, so your doctor will review the full context.
How long does it take to get results?
Results are typically available within 1–2 business days, depending on lab processing times.
Is this test painful?
The spinal tap procedure involves a small needle inserted into the lower back, which may cause temporary discomfort. Most patients report mild pain or pressure during the procedure, but it’s usually well-tolerated.
  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