Test Overview
Test Methodology

Indirect Immunofluorescent assay, RIA, Western blot, Cell Binding assay

Test Usage

Evaluating new onset encephalopathy (noninfectious or metabolic) comprising confusional states, psychosis, delirium, memory loss, hallucinations, movement disorders, sensory or motor complaints, seizures, dyssomnias, ataxias, nausea, vomiting, inappropriate antidiuresis, coma, dysautonomias, or hypoventilation in serum specimens

Reference Range *

By report

Test Details
Days Set Up
Monday - Friday
Analytic Time

7 - 11 days

Soft Order Code
Reference Laboratory
Mayo (ENS2)
Special Testing
Specimen Requirements
Collection Instructions

Collect specimen in red top or SST tube. Spin and aliquot into a screw capped plastic tube. Send to Specimen processing refrigerated.

Yellow Top Tube
Normal Volume
4 mL serum
Minimum Volume
2.5 mL serum
CPT Code
83519 x 5, 86255 x 14, 86341 If reflexes added: 84182 and/or 86255 and/or 86256
NY State Approved