eng Science and Education Publishing American Journal of Nursing Research 2378-5586 2020--1-17 8 2 163 169 10.12691/ajnr-8-2-5 AJNR2020825 article Noha Mohammed Ibrahim Ibrahim samoha201029@yahoo.com 1 Shereen Ahmed Ahmed Qalawa 1 2 Medical-Surgical Nursing Department, Faculty of Nursing, Port Said University, Egypt Background: The occurrence of pressure ulcers is an indicator of the quality of nursing care that patients receive. It is an issue that affects the quality of life of patients and raises the pressure on healthcare workers and the families of patients. Inadequate levels of awareness and performance may lead to the development of pressure ulcer. So, Nurses need to keep up to date on Pressure ulcer prevention. Aim: The study aimed to evaluate the effect of implementing standardized preventive guidelines for pressure ulcer on nurses' performance. Subjects and method: A quasi-experimental design was conducted on all available nurses provide direct care to patients at the time of data collection (99) in Port Said governmental hospitals. The data were collected using three tools; Nurses' Knowledge questionnaire, Nurses' attitude scale, and nurses 'observational checklist. Results: The findings of the present study showed that there was a statistically significant difference in nurses' knowledge, attitude, and practice pre and post implementing standardized preventive guidelines for pressure ulcer at p <0.001. Conclusion: The study concluded that there were improvements in nurses' performance regarding the care of patients at risk for pressure ulcer after implementing standardized preventive guidelines for pressure ulcer. So, the study recommended that there are specific demands for structured recommendations for the prevention of ulcer pressure given to nurses caring for high-risk patients on simple media. Efforts should be made to design and implement educational programs that match institutions and hospitals with field evidence, enhanced facilities and nurses ' educational approach of caring strategies for the patient's pressure ulcer risk. http://pubs.sciepub.com/ajnr/8/2/5/ajnr-8-2-5.pdf nurses' performance pressure ulcer preventive guidelines standardized