Department of Immunology

Notes

  • A specific antibody for myasthenia gravis. Positive in about 90% of patients with generalised disease and in 75% of patients with only ocular symptoms. The level of antibody is not an index of disease severity.
  • Serial measurements not helpful.
  • Test performed at Southmead Hospital, Bristol

Sample Requirements

Adult

5ml Gold-top SST tube or 3.5ml Rust-top gel tube

5ml gold tube



Paediatric

1ml Serum Sample

1ml serum tube








Turnaround Times

2 weeks

Reference Ranges

Range (nmol/l) Interpretation
<0.50 Negative
0.50 - 0.75 Equivocal
>0.75 Positive
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