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

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Monday - Sunday; reflex tests varies
Analytic Time

11 - 14 days

Soft Order Code
ENS2
Synonyms
    Laboratory
    Sendout
    Reference Laboratory
    Mayo (ENS2)
    Section
    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.

    Special Handling

    This test is only available to patients >18 (adult patients). For those patients that are younger than that, please use PCDES.

    Normal Volume

    4 mL serum

    Minimum Volume

    2.5 mL serum

    Storage Temperature
    Refrigerated preferred, frozen acceptable
    Additional Information

    Test performed by Mayo Clinic Laboratories

    Billing
    CPT Code
    83519 x 5, 86255 x 14, 86341 If reflexes added: 84182 and/or 86255 and/or 86256
    NY State Approved
    No