Methodology
Radioimmunoassay (RIA); Flow Cytometry; Medical Interpretation
Synonyms
Acetylcholine Receptor (Muscle AChR) Antibodies; Ach Receptor Ab; AChR (Acetylcholine Receptor); AChR Receptor Blocking Ab; Anti-Skeletal Muscle Antibodies; Binding, Blocking, and Modulating Abs; Blocking Ab; Muscle End-Plate Antibodies; MUSK; MuSK myasthenia; Myasthenia Gravis Antibodies; Myasthenia Gravis; Myoid Antibody; Thymoma
Specimen Type
Serum
Performing Lab
Mayo Medical Lab
Epic ID
Other Reference Test
Lab Test Days
Daily; Reflex tests: Varies
Standard TAT
3-10 Days
Collection Information
Specimen Required
4-6 mL Blood
Container Type
Red Top (No Additive)
Collection Instructions
For optimal antibody detection, specimen collection is recommended prior to initiation of immunosuppressant medication or intravenous immunoglobulin treatment.
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK
Specimen Stability
Room Temp: 72 Hours; Refrigerated: 28 Days (Preferred); Frozen: 28 Days
Rejection Criteria
Gross hemolysis; Gross lipemia; Gross icterus
Test Volume Required
3 mL Serum
Minimum Test Volume
2 mL Serum
Processing Instructions
Order test in Mayolink and send with Mayo courier Monday-Friday.
CPT Codes
86041; 86043; 86366
Revised
8/8/24
Initials
SA