This quantitative study had multiple objectives: to measure the nurse’s perception of fatigue, to determine the relationship between mental and physical fatigue, and to identify the relationship between fatigue and work performance within different demographics and occupational settings. An online survey called the Fatigue in Nursing Survey Set (FNSS) was administrated to 745 registered nurses enlisted to this study through convenience sampling. Participant demographics, along with four scales within the survey were used to measure fatigue, including the SOFI, FAS, F-RSQ, and OFER scales. The NPI was a scale used to evaluate the nurse’s perception of their work performance. All fatigue scales had a reliability of r≥0.7. The study resulted in
