Our Hospital just purchased a 64 CT machine and DI nurses will be responsible for administering Iv medications to decrease HR during the procedure. Does anyone have guidelines that they have been following to do this safely? Standing orders etc. Guidelines for D/C? I would appriciate any feedback to help develop policy and procedures. The cardiologist are new to this also and have not been very helpful. The Radiologist usually look to us for guidance concerning meds etc. and the only education being done so far is for the techs to run the machine.