Immunoglobulin Profile CSF Test
Short Name: Ig Profile CSF
Also known as: CSF Immunoglobulin Profile, Immunoglobulins in CSF Test, CSF IgA IgG IgM Test, Cerebrospinal Fluid Immunoglobulin Panel, CSF Antibody Profile Test
Immunoglobulin Profile CSF Test test available at DNA Labs India for ₹18,000. Uses Fixed Time Nephelometry on Cerebrospinal Fluid (CSF) samples. Results in Reports are available 2-3 weeks after sample collection. Samples should be submitted by the 7th of the month.. Free home collection in 300+ cities across India.
Overview
The Immunoglobulin Profile CSF Test is performed to evaluate the immune response within the central nervous system. It helps detect and differentiate between various neurological conditions by measuring the concentrations of three major immunoglobulin classes—IgA, IgG, and IgM—in cerebrospinal fluid. Elevated levels of specific immunoglobulins in CSF may indicate intrathecal antibody synthesis, which occurs when the immune system produces antibodies locally within the brain and spinal cord. This test is particularly useful in diagnosing multiple sclerosis, where oligoclonal IgG bands and elevated IgG index are characteristic findings. It also aids in identifying chronic infections of the central nervous system such as meningitis, encephalitis, neurosyphilis, and Lyme disease. Additionally, the test can be helpful in evaluating immunodeficiency disorders and neoplastic conditions affecting the CNS. By providing a quantitative profile of CSF immunoglobulins, this test assists neurologists in establishing an accurate diagnosis, monitoring disease progression, and evaluating treatment response.
- Test Code
- 886
- CPT Code
- 83883
- ICD Code
- G96.9
- Price
- ₹18,000
- Sample Type
- Cerebrospinal Fluid (CSF)
- Result Time
- Reports are available 2-3 weeks after sample collection. Samples should be submitted by the 7th of the month.
- Fasting Required
- No
- Method
- Fixed Time Nephelometry
Sample Collection
A Duly filled Test Send Out Consent Form (Form 35) is mandatory before sample collection. Inform your doctor about all medications, supplements, and any bleeding disorders. No fasting is required for this test. The procedure should be explained to the patient, and informed consent must be obtained.
Method: Lumbar Puncture (Spinal Tap)
Laboratory Analysis
CSF is collected via lumbar puncture (spinal tap). The patient is positioned in the lateral decubitus or sitting position. After local anesthesia and aseptic preparation, a spinal needle is inserted into the subarachnoid space, typically between the L3-L4 or L4-L5 vertebrae. Approximately 2 mL of CSF (minimum 1 mL) is collected into a sterile screw-capped container.
Report Delivery
After CSF collection, the patient should lie flat for at least 1-2 hours to reduce the risk of post-lumbar puncture headache. The CSF sample should be shipped refrigerated or frozen as per transport guidelines. Mild soreness at the puncture site is normal. Monitor for signs of infection or persistent headache.
Timeline: Reports are available 2-3 weeks after sample collection. Samples should be submitted by the 7th of the month.
Patient Instructions
About This Test
Who Should Get This Test
The Immunoglobulin Profile CSF Test is performed to evaluate the immune response within the central nervous system. It helps detect and differentiate between various neurological conditions by measuring the concentrations of three major immunoglobulin classes—IgA, IgG, and IgM—in cerebrospinal fluid. Elevated levels of specific immunoglobulins in CSF may indicate intrathecal antibody synthesis, which occurs when the immune system produces antibodies locally within the brain and spinal cord. This test is particularly useful in diagnosing multiple sclerosis, where oligoclonal IgG bands and elevated IgG index are characteristic findings. It also aids in identifying chronic infections of the central nervous system such as meningitis, encephalitis, neurosyphilis, and Lyme disease. Additionally, the test can be helpful in evaluating immunodeficiency disorders and neoplastic conditions affecting the CNS. By providing a quantitative profile of CSF immunoglobulins, this test assists neurologists in establishing an accurate diagnosis, monitoring disease progression, and evaluating treatment response.
How to Prepare
- Duly filled Test Send Out Consent Form (Form 35) is mandatory before sample collection
- Collect 2 mL (minimum 1 mL) of CSF in a sterile screw-capped container
- Ship the sample refrigerated or frozen to maintain sample integrity
- Label the sample correctly with patient details, date, and time of collection
- Avoid blood contamination of the CSF sample during lumbar puncture
- Record any relevant clinical information on the requisition form
Doctor's Notes
"The Immunoglobulin Profile CSF Test is an invaluable tool in neurology. Elevated IgG levels in cerebrospinal fluid, particularly with a high IgG Index, are strongly suggestive of intrathecal immunoglobulin synthesis, which is commonly seen in multiple sclerosis and chronic CNS infections. I recommend this test when patients present with unexplained neurological symptoms such as progressive weakness, visual disturbances, or cognitive decline, especially when initial CSF analysis shows elevated protein or pleocytosis. The combination of CSF immunoglobulin levels with clinical findings and neuroimaging provides a comprehensive diagnostic picture. It is important to interpret CSF immunoglobulin results alongside serum immunoglobulin levels to distinguish intrathecal production from blood-brain barrier disruption."
Test Parameters & Specifications
Sample Stability
- Missing or incomplete Test Send Out Consent Form (Form 35)
- Sample volume less than 1 mL
- Sample collected in a non-sterile or improperly labeled container
- Grossly hemolyzed or heavily blood-contaminated CSF samples
- Sample received at room temperature beyond the 8-hour stability window
- Unlabeled or mismatched patient identification on the sample
Understanding Your Results
May indicate intrathecal IgG synthesis, commonly associated with multiple sclerosis, chronic CNS infections such as neurosyphilis or Lyme disease, and certain autoimmune conditions.
May suggest acute CNS infection, including viral or bacterial meningitis and encephalitis. Elevated IgM can also be seen in early stages of certain neurological inflammatory conditions.
May indicate CNS infections, inflammatory conditions, or certain neoplastic disorders affecting the brain and meninges.
Suggests no significant intrathecal immune response. However, normal results do not entirely exclude neurological disorders, and clinical correlation is recommended.
Strongly suggests intrathecal production of immunoglobulins, pointing toward a localized CNS immune response rather than systemic disease with blood-brain barrier leakage.
Consult your neurologist or treating physician if you experience persistent headaches, unexplained numbness or tingling, progressive muscle weakness, vision changes, seizures, memory problems, or coordination difficulties. If your Immunoglobulin Profile CSF Test results show elevated levels of any immunoglobulin, prompt follow-up with your doctor is essential for further evaluation, diagnosis, and appropriate treatment planning.
Limitations
- ⚠This test does not differentiate between monoclonal and polyclonal immunoglobulin elevation
- ⚠Results must be interpreted alongside serum immunoglobulin levels and clinical findings
- ⚠The test cannot identify the specific antigen targeted by the immunoglobulins
- ⚠A normal result does not completely exclude the presence of a neurological disorder
- ⚠Reference ranges may vary between laboratories and population groups
Risks & Considerations
- ●Post-lumbar puncture headache (the most common complication)
- ●Mild discomfort or soreness at the puncture site
- ●Minor risk of bleeding at the puncture site
- ●Very rare risk of infection at the puncture site
- ●Rare risk of nerve irritation during needle insertion
Interfering Factors
- ●Grossly hemolyzed CSF samples may falsely elevate immunoglobulin levels
- ●Recent intrathecal drug administration may alter CSF protein composition
- ●Blood contamination of the CSF sample due to traumatic lumbar puncture
- ●Concurrent use of immunosuppressive or immunomodulatory therapy may affect results
- ●Serum immunoglobulin abnormalities can influence the calculated IgG Index
Compare With Similar Tests
| Test | Immunoglobulin Profile CSF Test | CSF Routine Analysis | Oligoclonal Bands Test | Serum Immunoglobulin Profile |
|---|---|---|---|---|
| Comparison | Immunoglobulin Profile CSF Test | CSF Routine Analysis evaluates cell count, protein, glucose, and appearance of CSF, while the Immunoglobulin Profile specifically quantifies IgA, IgG, and IgM levels. Both tests are often ordered together for comprehensive CSF evaluation. | The Oligoclonal Bands Test detects the presence of oligoclonal IgG bands in CSF and serum, which is highly specific for multiple sclerosis. The Immunoglobulin Profile provides quantitative immunoglobulin levels rather than band patterns. | Serum Immunoglobulin Profile measures immunoglobulin levels in blood. CSF immunoglobulin levels are interpreted in relation to serum levels to calculate the IgG Index, making both tests complementary. |
Frequently Asked Questions
What is the Immunoglobulin Profile CSF Test?
Why is the Immunoglobulin Profile CSF Test recommended?
What is the cost of the Immunoglobulin Profile CSF Test in India?
How is the CSF sample collected for this test?
Is the lumbar puncture procedure painful?
How long does it take to get the results of the Immunoglobulin Profile CSF Test?
What does elevated IgG in cerebrospinal fluid indicate?
Is fasting required for the Immunoglobulin Profile CSF Test?
What are the risks associated with CSF collection?
Can the Immunoglobulin Profile CSF Test diagnose multiple sclerosis?
What is the IgG Index and why is it important?
Is home sample collection available for the Immunoglobulin Profile CSF Test?
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