<prompt> The administration of succinylcholine to a paraplegic patient led to the appearance of dysarrhythmias, conduction abnormalities and finally cardiac arrest. The most likely cause isHypercalcemiaHyperkalemiaAnaphylaxisHypermagnesemia  <response>: Sch can cause dangerous hyperkalemia in paraplegic patients which may cause arrhythmias cardiac arrest. 