Laboratory Services
Acetylcholine Receptor (Muscle AChR) Binding Antibody, Serum
Print this pageUpdated Test Information:
| Test Description |
Acetylcholine Receptor (Muscle AChR) Binding Antibody, Serum
|
|
|---|---|---|
| Synonym(s) |
Acetylcholine Receptor (Muscle AChR) Antibodies, AChR (Acetylcholine Receptor), Anti -Neuromuscular Junction Receptor Antibodies, Myasthenia Gravis Antibodies |
|
| Test ID |
ARBI
|
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| General Information |
Supporting the diagnosis of autoimmune myasthenia gravis (MG) in adults and children Distinguishing autoimmune from congenital MG in adults and children or other acquired forms of neuromuscular junction transmission disorders An adjunct to the test for P/Q-type calcium channel binding antibodies as a diagnostic aid for Lambert-Eaton myasthenic syndrome |
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| Container Type |
Red top |
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| Specimen Type |
Serum |
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| Specimen Requirements |
1.5 mL |
|
| Specimen Collection / Processing Instructions |
Centrifuge and aliquot serum into a plastic vial For optimal antibody detection, specimen collection is recommended prior to initiation of immunosuppressant medication. |
|
| Minimum Sample Volume |
1 mL |
|
| Stability |
Refrigerated (preferred) 28 days |
|
| Unacceptable Specimen Conditions |
Gross hemolysis, gross lipemia, gross icterus |
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| Methodology |
Radioimmunoassay (RIA) |
|
| Estimated TAT |
3 to 6 days |
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| Testing Schedule |
Monday through Sunday |
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| Retention |
28 days |
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| CPT Code(s) |
86041 |
|
| Reference Range |
< or =0.02 nmol/L |
|
| Performing Lab |
Mayo |
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| LOINC Code(s) |
97558-1 |
