Anti NMDA Receptor / Anti-Glutamate Antibody Serum Test
Short Name: Anti-NMDA Antibody Test
Also known as: NMDA Receptor Antibody Test, Anti-Glutamate Receptor Antibody Test, Autoimmune Encephalitis Antibody Test
Anti NMDA Receptor / Anti-Glutamate Antibody Serum Test test available at DNA Labs India for ₹8,500. Uses Cell Based Assay, Immunofluorescence Assay (IFA) on Serum samples. Results in Reports are typically available same day if the sample is received by 9 am on Tuesday or Friday.. Free home collection in 300+ cities across India.
Overview
The Anti NMDA Receptor / Anti-Glutamate Antibody Serum Test is used for diagnosing autoimmune encephalitis, particularly anti-NMDA receptor encephalitis, guiding treatment decisions by identifying the specific autoimmune condition, and monitoring treatment effectiveness and disease progression.
- Test Code
- 150
- Price
- ₹8,500
- Sample Type
- Serum
- Result Time
- Reports are typically available same day if the sample is received by 9 am on Tuesday or Friday.
- Fasting Required
- Yes (8 hours)
- Method
- Cell Based Assay, Immunofluorescence Assay (IFA)
Sample Collection
Overnight fasting is preferred for at least 8 hours before sample collection to ensure accurate results.
Method: Venipuncture
Laboratory Analysis
A blood sample of 2 mL will be drawn from a vein in your arm using standard venipuncture technique with aseptic precautions.
Report Delivery
Apply gentle pressure to the puncture site with a cotton ball to prevent bleeding and avoid heavy lifting with that arm for a few hours.
Timeline: Reports are typically available same day if the sample is received by 9 am on Tuesday or Friday.
Patient Instructions
About This Test
Who Should Get This Test
The Anti NMDA Receptor / Anti-Glutamate Antibody Serum Test is used for diagnosing autoimmune encephalitis, particularly anti-NMDA receptor encephalitis, guiding treatment decisions by identifying the specific autoimmune condition, and monitoring treatment effectiveness and disease progression.
How to Prepare
- Fast overnight (8-12 hours) before the test
- Sample collected in a Serum Separator Tube (SST)
- Maintain sample at refrigerated or frozen temperature during transport
Doctor's Notes
"This test is essential for diagnosing anti-NMDA receptor encephalitis, a treatable autoimmune condition, and guides appropriate immunotherapy decisions."
Test Parameters & Specifications
Sample Stability
- Insufficient sample volume (less than 1 mL)
- Hemolyzed, icteric, or lipemic samples
- Improperly labeled or contaminated samples
Understanding Your Results
Positive
Antibodies detected, indicating probable anti-NMDA receptor encephalitis. Clinical correlation and further tests are recommended for confirmation and treatment planning.
Negative
No antibodies detected. However, if symptoms persist, other causes should be explored, and repeat testing or additional diagnostics may be considered.
Consult a neurologist immediately if you experience seizures, confusion, memory loss, or other neurological symptoms, or if test results are positive or inconclusive with persistent symptoms.
Limitations
- ⚠False negatives can occur if antibody levels are low
- ⚠Results must be interpreted alongside clinical symptoms and other diagnostic tests
- ⚠This test alone cannot confirm diagnosis without comprehensive clinical evaluation
Risks & Considerations
- ●Minor pain or bruising at the puncture site
- ●Rare risk of infection or fainting
- ●No significant long-term risks associated with the test
Interfering Factors
- ●Hemolyzed or lipemic samples may affect accuracy
- ●Recent immunizations or infections could potentially influence antibody levels
- ●Use of immunosuppressive medications may alter results
Compare With Similar Tests
| Test | Anti NMDA Receptor / Anti-Glutamate Antibody Serum Test | MRI Brain | Electroencephalogram (EEG) | Cerebrospinal Fluid (CSF) Analysis | Antinuclear Antibody (ANA) Test |
|---|---|---|---|---|---|
| Comparison | Anti NMDA Receptor / Anti-Glutamate Antibody Serum Test | Imaging test to detect brain inflammation or abnormalities, often used alongside antibody tests for comprehensive diagnosis. | Measures brain electrical activity to identify seizure patterns, complementing antibody test results. | Examines fluid surrounding the brain for signs of infection or inflammation, useful when serum tests are inconclusive. | General autoimmune screening test; less specific for anti-NMDA encephalitis but may be part of broader evaluation. |
Frequently Asked Questions
What is the Anti NMDA Receptor / Anti-Glutamate Antibody Serum Test?
Why is this test recommended?
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What does a positive result mean?
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We serve as a reference laboratory for hospitals and clinics across India. Send samples from your facility with same-day pickup, priority processing, and results delivered through our online portal. Competitive institutional pricing available.
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