Introduction : An emergency room is a location of extremely high activity level and involves a very complex, hazardous work with interactions between the ailing emergency patient, the doctor, nurses, and the intensity of emergency. Different studies of such hazardous work has produced different results and insights and have contributed immensely in the in the improvement of safety in these fields o, of the personnel involved .They have led to different valuable alterations in mechanisms of the process and involves electronic reporting, analysis of safety of the staff, communication etc. Human errors have been significant in contribution to many undesirable effects and hence proper management of human errors also becomes essential. Occurrence of preventable errors on part of hospital staff in emergency room There are considerable implications of preventable errors that were produced by human error to patients in the emergency room. .Different epidemiological studies have identified significant rates of preventable error occurring in almost all stages of care within emergency