1. Critical Care & Emergency Nursing, Faculty of Nursing, Kafr- Elsheikh University, Egypt
2. Critical Care & Emergency Nursing, Faculty of Nursing, Cairo University, Egypt
3. Anaesthesia and surgical ICU, Faculty of Medicine, Kafr-Elsheikh University, Egypt
4. Lecture of Anaesthesia and Surgical ICU, Faculty of Medicine, Kafr-Elsheikh University, Egypt