Test Overview
Test Methodology

Quantitative Radioimmunoassay

Reference Range *

Acetylcholine Binding Ab: Negative 0.0-0.4 nmol/L ; Positive 0.5 nmol/L or greater
Acetylcholine Blocking Ab: Negative 0-26% blocking ; Indeterminate 27-41% ; Positive 42% or greater
Acetylcholine Receptor Modulating Ab Negative 4-45% Modulating; Positive 46 % or greater
MuSK <1:10

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

Test Details
Days Set Up
Sunday - Saturday
Analytic Time

7 - 14 days

Soft Order Code
MMLR
Synonyms
    Laboratory
    Sendout
    Reference Laboratory
    Mayo FGMRP (ARUP 3001869)
    Section
    Special Testing
    Specimen Requirements
    Collection Instructions

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

    Normal Volume
    1 mL serum
    Minimum Volume
    0.5 mL serum
    Storage Temperature
    Refrigerated preferred, frozen acceptable
    Additional Information

    Test sent to Mayo Clinic Laboratories; performed by ARUP Laboratories

    Billing
    CPT Code
    83519 Reflexes if appropriate: 83156, 83516, 86255, 86256
    NY State Approved
    No