This was a retrospective audit assessing vancomycin dosing of 60 mg/kg/day in the attainment of therapeutic concentrations between 10–20 mcg/mL among 56 pediatric oncology patients. Twelve patients (21%) achieved therapeutic concentrations of 10–20 mcg/mL, while 44 patients (79%) obtained trough levels below 10 mcg/mL despite the addition of nephrotoxic agents.
