Q. A 56-year-old man comes to the physician’s office for a one-month history of progressive fatigue, pallor, and easy bruising. He also reports intermittent fevers and night sweats during this period. His temperature is 100°F (37.8°C), heart rate is 100/min, respiratory rate is 14/minute, and blood pressure is 110/70 mm of Hg. On physical examination, the patient looks pale and weak, and multiple petechiae are noted on both his thighs. The rest of the examination is normal. Laboratory studies are shown below. Peripheral blood smear demonstrates myeloblasts comprising 90% of the total white blood cells and Auer rods are noted within myeloblasts. What is the best next step in management?