ACh Receptor Binding Ab

• CPT Code: 83519
• LOINC: 11034-6
• Specimen Type: red or gel clot
• Frequency: Setup: Mon-Thur, Sat, analytic time 3 days
• Instructions: 2.0mL serum from red or SST tube, refrigerated. Min 1.0mL.
• Text: Useful For: Confirming the diagnosis of myasthenia gravis; Distinguishing acquired disease (90% positive) from congenital disease (negative); Detecting subclinical MG in patients with thymoma or graft-versus-host disease; Monitoring disease progression in MG or response to immunotherapy.
• Methodology: Radioimmunoassay (RIA)