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HelpTest Code NMDAR NMDA Receptor Antibody, serum
Laboratory Code
LAB2210
Specimen Requirements
Specimen Type: Serum
Container/Tube: Red Top
Volume: 6.0 mL
Minimum Volume: 0.5 mL serum
Collection Instructions: Allow specimen to clot for 30 mins and centrifuge within 2 hrs
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | 2 days |
| Refrigerate | 2 weeks (preferred) |
| Frozen | 1 year |
Methodology
Immunofluorescence
Days and Times Performed
Alternate Tuesday, TAT 1 - 15 days
Specimen Condition
| Haemolysis | OK |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others | Not applicable |
Reference Interval
Negative
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
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.
Service Code
33311
LOINC Code Information
82981-2
Alias
NMDA-R Ab CBA
Update
Last updated 21/02/2025