Most commonly testing of PRRT2 for paroxysmal kinesigenic dyskinesia (PKD), PNKD in paroxysmal non-kinesigenic dyskinesia (PNKD) or SLC2A1 in paroxysmal-exercised induced dyskinesia (PED). The gene discussed is PRRT2; the disease is episodic kinesigenic dyskinesia 1.