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
    Reference Laboratory
    Mayo FGMRP (ARUP 3001869)
    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