ence in the LX 20 phosphorus assay. The occurrence of severe hyperphosphatemia during treatment with high-dose liposomal amphotericin was reported in a pediatric patient (3 ), but the possibility of pseudohyperphosphatemia caused by interference of liposomal amphotericin B in the phosphorus assay was not addressed. In this pediatric case, the phosphorus assay was performed on a Synchron LX20 an...
