The patient was found to have elevated blood urea nitrogen and creatinine levels, which increased from 0.9 to 4.0 mg/dL over a couple of days, likely due to acute kidney failure. The patient also had a decreased potassium level of 2.9. The patient was found to be anemic, with a hemoglobin of 6.1 g/dL, likely due to his underlying sickle cell anemia, and received a transfusion of 3 units of packed red blood cells. The patient had an elevated white blood cell count of 30.0 x 103/µL. Arterial blood gas analysis revealed a pH of 7.23, partial pressure of oxygen of 115 mm Hg, bicarbonate level of 16.8 mEq/L, and base excess of −9.5 mEq/liter.