Many healthcare workers are concerned about the risk of occupational exposures to hazardous drugs. Since Falck [Falck et al.,1979] reported that mutagens were detected in the urine samples of nurses involved in chemotherapy, many reports have been published about the presence of urinary mutagen [Roth et al.,1994; Burgaz et al.,1999; Kasuba et al.,1999; Lanza et al.,1999; Jakab et al.,2001; Kopj...