A 25-year-old man was recently diagnosed with leukemia. He…
A 25-year-old man was recently diagnosed with leukemia. He is admitted to the hospital for further evaluation and chemotherapy initiation. He only complains of fatigue and malaise. Laboratory evaluation reveals pancytopenia, elevated potassium (K 6.8), elevated uric acid (13), elevated phosphate (12), and elevated lactate dehydrogenase (350). What is the most likely cause of his electrolyte abnormalities?