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Labcorp Oklahoma, Inc.
Test Directory


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Myasthenia Gravis Panel 1

Order Name MYAS GRAV1
Test Number: 5551325
Revision Date 01/01/2024
Test Name Methodology LOINC Code
Acetylcholine Receptor Binding Antibody
See Test Notes 11034-6 
Striated Muscle Antibody Screen with Titer
Immunofluorescence Assay (IFA) 5372-8 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 2 (1 mL) Serum Clot Activator SST Refrigerated
Alternate 1 2 (1 mL) Serum Clot Activator (Red Top, No-Gel) Refrigerated
Instructions Separate serum from cells ASAP or within 2 hours of collection.
Combined Stability for both tests:
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
GENERAL INFORMATION
Testing Schedule Mon - Sat 
Expected TAT 4-5 Days  
Clinical Use Myasthenia Gravis is a neurological disorder characterized by a decrease in acetylcholine receptors. Patients exhibit skeletal muscle weakness and fatigability. 
Notes See individual panel components for more information for those tests.
CPT Code(s) 86041, 86255
Lab Section Reference Lab