Sign in →

Catalog ID Auto Enceph Autoimmune Encephalitis Extended Panel, Serum

Important Note

This test will be discontinued by ARUP effective 5/20/24. Please order a symptom specific autoimmune panel.

Additional Codes

CPOE: Ref Autoimmune Encephalitis Extended Panel, Serum

DOE: Ref Auto Enceph

Specimen

Gold SST tube, collect 6 ml blood

Centrifuge within 2 hours of collection

Serum, three (3) 1 mL aliquots in separate transport tubes, frozen

Rejection Criteria

Plasma specimens, other body fluid specimens, contaminated specimens, specimens not centrifuged <2 hours from specimen collection, specimens at room temperature >24 hours, insufficient quantity, unlabelled specimen

Interpretative Information

Aids in the differential evaluation of encephalitis of unknown origin with subacute onset of seizures, confusion, memory loss, and/or behavioral change.

If N-methyl-D-Aspartate Receptor antibody is positive, then a titer will be added. Additional charges apply.
If Aquaporin-4 Receptor antibody IgG is positive, then a titer will be added. Additional charges apply.
If LGI1 antibody IgG is positive, then LGI1 antibody IgG titer will be added. Additional charges apply.
If CASPR2 antibody IgG is positive, then CASPR2 antibody IgG titer will be added. Additional charges apply.
If AMPAR antibody IgG is positive, then a titer will be added. Additional charges apply.
If GABABR antibody IgG is positive, then a titer will be added. Additional charges apply.
If MOG antibody IgG is positive, then a titer will be added. Additional charges apply.
If DPPX antibody IgG is positive, then a titer will be added. Additional charges apply.
If GABAAR antibody IgG is positive, then a titer will be added. Additional charges apply.
If IgLON5 antibody IgG is positive, then a titer will be added. Additional charges apply.
If mGluR1 antibody IgG is positive, then a titer will be added. Additional charge apply.

Performing Lab

ARUP Laboratories

Turn-Around-Time

3-10 days (performed on Tuesdays)

Reference Values

Component Reference Interval
Glutamic Acid Decarboxylase Antibody 0.0-5.0 IU/mL
N-methyl-D-Aspartate Receptor Ab, Serum Less than 1:10
Voltage-Gated Potassium Channel Ab, Ser 31 pmol/L or less
CASPR2 Ab IgG Screen by IFA, Serum Less than 1:10
LGI1 Ab IgG Screen by IFA, Serum Less than 1:10
Neuromyelitis Optica/AQP4-IgG, Serum Less than 1:10
AMPA Receptor Ab IgG Screen, Serum Less than 1:10
GABA-B Receptor Ab IgG Screen, Serum Less than 1:10
MOG Antibody IgG Screen, Serum Less than 1:10
DPPX Ab IgG CBA IFA Screen, Serum Less than 1:10
GABA-AR Ab IgG CBA-IFA Screen, Serum Less than 1:10
IgLON5 Ab IgG CBA-IFA Screen, Serum Less than 1:10
mGluR1 Ab IgG CBA-IFA Screen, Serum Less than 1:10