Patients with COVID-19 symptoms are isolated and treated in a high-risk zone (HRZ) within the emergency department. Entry is restricted to essential staff wearing personal protective equipment (PPE).
HRZ doctors and nurses typically work 5-10 hour shifts, during which meal and toilet breaks must be taken outside the HRZ. Doffing (taking off PPE) and repeated donning (putting on PPE) are discouraged to conserve PPE. Doctors and nurses often work continuously with minimum breaks because they must doff before exiting and don before entering the HRZ. PPE traps body heat generated by physical activity, adding to mental and physical fatigue, and potential breaches in infection control precautions.
This study will investigate the length-of-time doctors or nurses can safely work in HRZ in one continuous shift.