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Cerebrospinal Fluid Total Protein by Substance Concentration (Qualitative)

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

This test measures the total amount of protein in your cerebrospinal fluid (CSF), which is the fluid surrounding your brain and spinal cord. Proteins in CSF can help identify conditions affecting the central nervous system.

Quick summary

["Protein levels in CSF may signal inflammation, infection, or structural issues in the brain or spinal cord."]

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

Key facts at a glance

LOINC
109827-6
Short code
T sol lar Ab Msmt CSF
Synonyms
T sol lar 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

Why This Test Might Be Ordered

Your doctor may recommend this test if you have symptoms like headaches, neck stiffness, vision changes, or neurological issues that suggest a problem with the brain or spinal fluid. It could also be part of an evaluation for conditions like meningitis, multiple sclerosis, or other spinal cord disorders.

What to Expect Before the Test

No special preparation is needed. You may have a lumbar puncture (spinal tap) where a small amount of CSF is collected from your lower back. This is usually done in a hospital setting with sedation for comfort.

What the Results Mean

Protein levels in CSF can vary based on health, age, and other factors. High protein levels might indicate inflammation, infection, or a tumor affecting the central nervous system. Low levels are less common but could suggest certain neurological conditions.

Common Conditions Affecting Results

Elevated protein levels may be linked to conditions like meningitis, encephalitis, multiple sclerosis, or tumors in the central nervous system. Your doctor will consider your symptoms and other test results to interpret the results accurately.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

CSF Total Protein (Qualitative)

Frequently asked questions

What causes elevated protein levels in CSF?
Elevated protein levels in CSF can result from conditions that increase protein production or leakage into the CSF, such as infections (e.g., bacterial or viral meningitis), autoimmune diseases (e.g., multiple sclerosis), or tumors. It can also be due to inflammation or other neurological disorders.
How long does it take to get results from this test?
Results from this test are typically available within a few days to a week, depending on laboratory processing times. Your doctor will discuss the results with you during a follow-up visit.
Can diet or medications affect this test?
Diet or common over-the-counter medications usually do not affect CSF protein levels. However, certain medications (like steroids) or conditions that alter protein metabolism might indirectly influence results. Always inform your doctor about all medications you’re taking.
  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