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HelpTest Code NMDAC NMDA Receptor Antibody, CSF
Specimen Requirements
Specimen Type: Cerebrospinal fluid (CSF)
Container/Tube: Screw capped sterile container
Volume: 0.5mL CSF
Minimum Volume: 0.5mL CSF
Collection Instructions: Centrifuge CSF specimen to remove any cellular protein if present.
Sample Stability
** Preferred temperatures for storage prior to and during shipping to NUH **
| Specimen Type: | CSF |
|---|---|
| Ambient: | 2 days |
| Refrigerate: | 2 weeks |
| Frozen: | 1 year |
Reference Interval
Negative
Days and Times Performed
Alternate Tuesday, TAT 1–15 days
Methodology
Immunofluorescence
Service Code
0033312
Update
Last updated 17/10/2022
Updated Sample Stability
Unacceptable Condition
| Haemolysis | NA |
|---|---|
| Icterus | NA |
| Lipaemic | NA |
| Others | NA |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Alias
NMDA-R Ab CBA
Useful For
NMDA Receptor Antibodies are associated with anti-NMDAR encephalitis, a neurologic immune-mediated disease which typically presents with a flu-like prodromal phase, followed by psychiatric symptoms, abnormal movements, seizures, dysautonomia and decreased consciousness. Simultaneous testing of serum and cerebrospinal fluid (CSF) is recommended.