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
Equivocal = 70-130 pmol/L
Positive = >130 pmol/
|Sample & container required||RST (rust top), Gel SST (yellow top), Can also be performed on CSF|
|Sample volume||5-10 mL (2 mL serum)|
|Turnaround time||28 days|
Not currently performed in house; this test is referred to the University Hospital, Birmingham.