Cerebrospinal Fluid Protein Electrophoresis (Qualitative)
This test measures the protein composition in your cerebrospinal fluid (CSF) using electrophoresis, a method that separates proteins based on size and charge. It helps identify abnormal protein patterns that may indicate conditions like multiple sclerosis, infections, or tumors.
["This test helps diagnose and monitor conditions affecting your brain and spinal cord by checking for unusual protein levels."]
Key facts at a glance
- LOINC
- 89536-7
- Short code
- ENA PM/SCL Ab CSF Ql Line blot
- Synonyms
- ENA PM/SCL Ab CSF Ql Line blot
- Category
- chemistry
- Sample
- csf
- Container
- Sterile tube
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- line-blot
- 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 headaches, vision problems, numbness, or weakness that could suggest a neurological issue. It’s also used to monitor diseases like multiple sclerosis, meningitis, or brain tumors.
What to Expect During the Test
A small amount of CSF is collected through a procedure called a lumbar puncture (spinal tap). The fluid is then analyzed in a lab to separate proteins using electrophoresis, which creates bands representing different protein types.
How the Results Are Interpreted
Qualitative results show the presence or absence of specific protein patterns, such as albumin, globulins, or immunoglobulin bands. Abnormal patterns may indicate inflammation, infection, or other neurological disorders.
Common Conditions Affecting Results
Abnormal protein bands in CSF can signal conditions like multiple sclerosis (where oligoclonal bands appear), meningitis (elevated protein levels), or tumors (elevated immunoglobulin levels). Normal results suggest no obvious protein abnormalities.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test is crucial for diagnosing and managing neurological diseases by identifying specific protein patterns that may not be detected by other tests. It helps guide treatment decisions and monitor disease progression.
Short name
CSF Protein Electrophoresis
Frequently asked questions
What does a positive or abnormal result mean?
How often will I need this test?
Is there any preparation needed before the test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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