Test ID: ZH342
CPT code: 83519X3
Specimen Type: Red or SST
Frequency: 2 – 5 days
Instruction: 4 mL divided into two tubes, Serum from Red or SST, Refrigerated, Separate within two hours . Min 2 mL.
Text: Test for the laboratory diagnosis of myasthenia gravis (MG), including muscle‐specific kinase (MuSK) myasthenia gravis.