Voltage gated potassium channel antibodies are seen in neuromyotonia.
Presentation of muscle cramps, myotonia-like symptoms, excessive sweating, myokymia and fasciculations Diagnosis of Morvan’s syndrome (sleep disorders, memory loss and confusion)
Normal = 0 - 69 pmol/L
RST (rust top), Gel SST (yellow top), Can also be performed on CSF
5-10 mL (2 mL serum)
Not currently performed in house; this test is referred to the Department of Immunology at the Churchill Hospital in Oxford.