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Cerebrospinal Fluid (CSF) Protein by Substance Concentration (Electrophoresis)

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

This test measures the types and amounts of proteins found in your cerebrospinal fluid (the fluid surrounding your brain and spinal cord). It helps identify abnormalities that may indicate conditions like infections, inflammation, or neurological diseases.

Quick summary

["Understanding protein patterns in CSF can reveal clues about brain health and potential disorders."]

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

Key facts at a glance

LOINC
110911-5
Short code
MuV IgG Msmt CSF
Synonyms
MuV IgG Msmt CSF
Category
chemistry
Sample
csf
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82784
Specimen volume
1-2 mL
Stability
Immediate analysis required, Refrigerated: 1h
Hemolysis max
200
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your doctor may order this test if you have symptoms like severe headaches, neurological issues, or signs of an infection in the central nervous system. It’s also used to monitor conditions such as multiple sclerosis, meningitis, or brain tumors.

What to Expect Before the Test

You’ll receive a spinal tap (lumbar puncture) where a small needle is inserted into your lower back to collect CSF. The procedure is quick but may cause mild discomfort. No special preparation is needed, but inform your doctor about any medications you’re taking.

What the Results Mean

Normal results show balanced protein levels, while abnormal patterns (e.g., high levels of specific proteins) may signal inflammation, infections, or other neurological conditions. Your doctor will interpret results in the context of your symptoms and medical history.

Common Conditions This Test Helps Diagnose

This test can help diagnose or monitor conditions like Guillain-Barré syndrome, multiple sclerosis, encephalitis, or subarachnoid hemorrhages. It may also assess the effectiveness of treatments for these conditions.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

CSF Protein Profile

Frequently asked questions

What does a high or low protein level in CSF usually indicate?
High protein levels in CSF can suggest inflammation, infections (e.g., meningitis), or demyelinating diseases like multiple sclerosis. Low protein levels may indicate conditions like cerebral edema or certain genetic disorders.
How long does it take to get results from this test?
Results are typically available within 1–3 business days, depending on lab processing times. Your doctor will discuss findings with you during a follow-up visit.
Can I drink fluids before the test?
Yes, you can drink fluids as usual, but avoid caffeine or alcohol before the procedure to minimize discomfort. Follow your doctor’s specific instructions for the day of the test.
  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