Test Catalog

Test ID: ARBI    
Acetylcholine Receptor (Muscle AChR) Binding Antibody, Serum

Useful For Suggests clinical disorders or settings where the test may be helpful

A first-order test for the laboratory diagnosis of myasthenia gravis (MG)

 

Detecting "subclinical MG" in recipients of D-penicillamine, in patients with thymoma without clinical evidence of MG, and in patients with graft-versus-host disease

 

Distinguishing acquired disease (90% positive) from congenital disease (negative)

 

Monitoring disease progression in MG or response to immunotherapy

 

An adjunct to the test for P/Q-type calcium channel binding antibodies as a diagnostic aid for Lambert-Eaton myasthenic syndrome (LES) or primary lung carcinoma

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

This is the primary diagnostic test for myasthenia gravis.

 

See the following algorithms in Special Instructions:

Myasthenia Gravis Evaluation with MuSK Reflex Algorithm

Myasthenia Gravis/Lambert Eaton Syndrome Diagnostic Algorithm

Myasthenia Gravis: Adult Diagnostic Algorithm

Myasthenia Gravis: Pediatric Diagnostic Algorithm

Myasthenia Gravis: Thymoma Diagnostic Algorithm

Special Instructions Library of PDFs including pertinent information and forms related to the test

Method Name A short description of the method used to perform the test

Radioimmunoassay (RIA)

NY State Available Indicates the status of NY State approval and if the test is orderable for NY State clients.

Yes

Reporting Name Lists a shorter or abbreviated version of the Published Name for a test

ACh Receptor (Muscle) Binding Ab

Aliases Lists additional common names for a test, as an aid in searching

Acetylcholine Receptor (Muscle AChR) Antibodies
AChR (Acetylcholine Receptor)
Anti -Neuromuscular Junction Receptor Antibodies
Myasthenia Gravis Antibodies