Sign in →

Catalog ID NMDA CSF N-methyl-D-Aspartate Receptor Antibody, IgG CBA-IFA, CSF with Reflex to Titer

Additional Codes

CPOE: Ref N-methyl-D-Aspartate Receptor Antibody, IgG CBA-IFA, CSF with Reflex to Titer

DOE: Ref NMDAR CSF

Specimen

CSF, 0.5 mL (0.15 mL minimum) in transport tube, refrigerated

Rejection Criteria

Serum, plasma, contaminated speicmen, hemolyzed specimen, severely lipemic specimen, specimen at room temperature >48 hours, insufficient quantity, unlabelled specimen

Interpretative Information

Anti-NMDA receptor IgG antibody is found in a subset of patients with autoimmune limbic encephalitis and may occur with or without associated tumor. Decreasing antibody levels may be associated with therapeutic response; therefore, clinical correlation must be strongly considered. A negative test result does not rule out a diagnosis of autoimmune limbic encephalitis.

If NMDA antibody IgG is positive, then an NMDA antibody IgG titer is reported. Additional charges apply.

Performing Lab

ARUP Laboratories

Turn-Around-Time

1-3 days from ARUP Laboratories specimen receipt

Reference Values

Less than 1:1