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Cerebrospinal Fluid (CSF) Protein Profile (Qualitative)

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

This test evaluates the overall protein content in cerebrospinal fluid, which may help identify abnormalities in the brain’s protective barrier or potential inflammation.

Quick summary

["A CSF protein screening can help detect issues like infections, bleeding, or neurological disorders."]

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

Key facts at a glance

LOINC
82437-5
Short code
Deprecated ENA SS-A Ab CSF Ql IB
Synonyms
Deprecated ENA SS-A Ab CSF Ql IB
Category
chemistry
Sample
csf
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ib
Specimen volume
1-2 mL
Stability
Immediate analysis required, Refrigerated: 1h
Hemolysis max
200
TAT
4–24 hours
Order
routine

What Is This Test Measuring?

CSF protein screening assesses the qualitative presence of proteins in cerebrospinal fluid, often using techniques like electrophoresis to separate and identify different protein types. This can reveal patterns that may indicate underlying conditions affecting the central nervous system.

Why Might You Need This Test?

Your doctor may order this test if you have symptoms like headaches, neurological symptoms, or if you’ve been diagnosed with a condition that could affect CSF composition, such as meningitis, multiple sclerosis, or traumatic brain injury.

What Does the Result Mean?

Results are qualitative (yes/no or pattern-based) rather than numeric. Abnormal patterns may suggest conditions like protein leaks, infections, or demyelinating diseases. Always discuss results with your healthcare provider.

Common Conditions Linked to This Test

This test is often used to investigate conditions such as Guillain-Barré syndrome, subarachnoid hemorrhage, or chronic inflammatory diseases of the central nervous system.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

CSF Protein Screening

Frequently asked questions

How is the CSF Collected for This Test?
CSF is collected via a lumbar puncture (spinal tap), where a needle is inserted into the spinal canal to draw a small sample. This procedure is typically done in a hospital setting under sterile conditions.
What Are the Possible Side Effects of the Procedure?
Most people experience mild discomfort or soreness at the injection site. Rarely, complications like headache, infection, or nerve damage may occur. Your healthcare provider will explain risks and precautions before the procedure.
How Long Does It Take to Get Results?
Results are usually available within 1–2 business days, depending on lab processing and follow-up testing if needed. Follow-up with your doctor is essential to interpret findings.
  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