<prompt> Initial treatment of tumor lysis syndrome is -Rasburicase Hydration K binder Urinary alkalizationAllopurinol Hydration K binder alkalizationBoth rasburicase Allopurinol Hydration and K binderHydration alone is sufficient  <response>: Answer- A. Rasburicase Hydration K binder Urinary alkalizationAllopurinol is used in prophylaxis in low and intermediate risk. Examinar is asking about treatment, in which rasburicase is used. 