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Cerebrospinal Fluid Protein by Electrophoresis (Qualitative)

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

This test analyzes the protein composition in your cerebrospinal fluid (CSF) using electrophoresis, a method that separates proteins based on size and charge. It helps identify patterns that may indicate infections, inflammation, or other neurological conditions.

Quick summary

["This test can help diagnose or monitor conditions affecting your brain or spinal cord."]

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

Key facts at a glance

LOINC
16581-1
Short code
C pneum IgA Titr CSF IF
Synonyms
C pneum IgA Titr CSF IF
Category
chemistry
Sample
csf
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
if
CPT
82784
Specimen volume
1-2 mL
Stability
Immediate analysis required, Refrigerated: 1h
Hemolysis max
200
TAT
4–24 hours
Order
routine

Why Is This Test Done?

Your doctor may order this test if you have symptoms like headaches, neck stiffness, confusion, or neurological issues. It’s also used to check for conditions such as meningitis, multiple sclerosis, or tumors affecting the brain or spinal cord.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your lumbar spine to collect CSF. The procedure is usually quick and painless, though you may feel mild pressure or discomfort.

What the Results Mean

The test looks for abnormal protein patterns, such as high levels of certain proteins (e.g., albumin or immunoglobulin) that may suggest inflammation, infection, or other neurological disorders. Results are interpreted by your healthcare provider based on your symptoms and medical history.

Common Conditions This Test Helps Diagnose

Abnormal protein bands or patterns may indicate conditions like Guillain-Barré syndrome, multiple sclerosis, subarachnoid hemorrhage, or certain types of brain tumors. It can also help rule out infections like meningitis or encephalitis.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

CSF Protein Electrophoresis (Qual)

Frequently asked questions

What does an abnormal result mean?
An abnormal result may signal an underlying neurological condition that requires further evaluation, such as additional tests or treatment. Your doctor will discuss the findings with you and determine the next steps based on your symptoms and test results.
Can this test be done at home?
No, this test requires a medical procedure performed in a clinical setting, such as a hospital or doctor’s office. You’ll need to be accompanied by a healthcare provider.
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 with the findings once they are ready.
  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