Precautions taken to Reduce Risk of Using Radioactive Sources

1) keep radioactive sources like technetium-99 shielded (preferably in a lead-lined box) when not in use 2) wear protective clothing to prevent the body becoming contaminated should radioactive isotopes leak out 3) avoid contact with bare skin and do not attempt to taste the sources 4) wear face masks to avoid breathing in materials 5) limit exposure time - so less time is spent around radioactive materials handle radioactive materials with tongs in order to keep a safer distance from sources 6) monitor exposure using detector badges, etc