<prompt> The administration of succinylcholine to a paraplegic patient led to appearance of dysarrythmias, conduction abnormalities and finally cardiac arrest. The most likely cause is:HypercalcemiaHyperkalemiaAnaphylaxisHypermagnesemia  <response>: Ans. B HyperkalemiaRef: Katzung 11the p460Succinylcholine can cause hyperkalemia especially in patients with nerve and muscle disorders. Therefore it is contra-indicated in patients with nerve diseases like paraplegia, hemiplegia and Guillain barre syndrome and muscle diseases muscular dystrophy, myasthenia gravis, crush injury, burns and rhabdomyolysis. 