Familial hypokalemic paralysis: a case study.

A case of hypokalemic periodic paralysis, is reported, characterized by a positive family history and by repeated attacks of transient motor weakness since the age of 14 involving one all limbs. An induction test under ECG and EMG monitoring, carried out by infusing glucose and insulin when the patient was symptom-free, provoked motor paresis comparable to the spontaneous attacks and confirmed the diagnosis.