Diagnose myasthenia gravis and thymoma
Immediatley following collection, mix sample by gently inverting 5 times
Gold serum separator (SST) tube
Ambient (preferred) - 14 days
Refrigerated - 14 days
Frozen - 14 days
Freeze/thaw cycles - stable x3
Immunofluorescence (IF)
Negative: <1:40