We investigated the extent of environmental contamination due to the preparation of antineoplastic drugs and the exposure of pharmacists to them in the course of their work.
In 2006,we determined the levels of cyclophosphamide (CP) in 5 samples taken from different areas of our pharmacy.The CP levels in the work area of the Biological Safety Cabinet (BSC),on the airfoil in the BSC,outside the BSC in the antineoplastics preparation room and outside the preparation room were 6.82 ng/cm
2,26.19 ng/cm
2,0.59 ng/cm
2 and 0.15 ng/cm
2,respectively.No CP was detected in the delivery box.The mean level of CP in 24-hour urine samples taken from the 6 pharmacists engaged in the preparation of antineoplastic drugs was 17.7±18.7 ng/24 hr.
Based on these results,as a means of preventing exposure to antineoplastic drugs,we conducted improvement programs with regard to the following : (1)operation manuals for cleaning,(2)disposal methods for medical devices,(3)location for dissolution of CP,(4)gowns for pharmacists,(5)having utensils for exclusive use in the preparation of antineoplastic drugs and (6)training of pharmacists.
In 2008,we investigated the situation again.CP levels in the work area of the BSC,on the airfoil in the BSC,outside the BSC in the preparation room and outside the preparation room were 0.02 ng/cm
2,0.04 ng/cm
2,0.25 ng/cm
2 and 0.01 ng/ cm
2,respectively.No CP was detected in the delivery box.The mean 24-hour urine sample CP level in the 4 pharmacists engaged in the preparation of antineoplastic drugs was 39.0±14.3 ng/24 hr,which was similar to that for 2 pharmacists not engaged in preparation of antineoplastic drugs.
These results suggest that the intervention programs we conducted after the 1st CP investigation had been effective in reducing environmental contamination,especially in the BSC,but had not reduced the exposure of pharmacists to CP.
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