Acetylcholine Receptor Antibodies

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 Neuroimmunology Lab, Glasgow.

Sample Requirements

Clotted blood. (No patient preparation or special handling required)

Adult

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

Paediatric

1ml Serum Sample

Turnaround Times

3 weeks

Time limit for add-on

3 days

Reference Ranges