Atmospheric Yes Bloodbody fluids Yes Chemical hazards Yes Working on or around moving machinery Yes Electrical current Yes Noise No Changes of temperaturehumidity Yes Wear PPE Yes Work with laboratory animals No Radiation Operating handpower tools Yes. Committed to advancing quality health care, Nebraska Medicine represents the clinical integration of The Nebraska Medical Center, the states largest and highest rated hospital, Bellevue Medical Center, and UNMC Physicians, the areas largest physician group practice.