ABGA have been associated with movement disorders (usually tics and chorea) and psychiatric disturbance in children. It is hypothesised that dystonia in adults or adolescents may be part of the clinical spectrum of the post-infectious syndrome associated with ABGA.
Sydenham's chorea tic disorders encephalitis lethargicalike syndrome
RST (rust top), Can also be performed on CSF
5-10 mL (1 mL serum)
Not currently performed in house; this test is referred to the Institute of Neurology, Queens Square, London.