Clinical thinking is the way of clinicians to judge, evaluate and make decisions for patient disease. One fact that all clinicians in different clinical departments received the same or similar medical education in medical universities suggests medical knowledge is necessary in clinical thinking and routine work.

At present, in medical universities the connection of each basic medical courses and their binding with clinical knowledge are not clearly proposed, at least in China. Thus makes students cannot set up a knowledge frame composed of basic and clinical knowledge based on their intrisic connection, thus results in non-organized medical knowledge on which clinical thinking is hardly constructed. A well- organized medical knowledge frame is the basement of correct clinical thinning.

My lecture has the title of “How to lead?” about the principles of teaching, leadership and team work with the value of role models. The vision of organizational culture and its role in medical and nursing teaching – organization development.

Statement of the Problem: Patients with transfemoral coronary angiography may have complications such as oozing, bleeding, ecchymosis, hematoma, and back discomfort. Therefore, necessary to guide nursing practice towards patient safety in post-procedure position and ambulation. The purpose of this study is to assess the effects of bed rest with position change versus early ambulation on post-transfemoral coronary angiography complications in cardiac patients. Methodology: A quasi-experimental research design has been used to conduct this study at the Coronary Care Unit of the selected university hospital in Egypt. A convenience sample of 185 patients within 6 hours post transfemoral coronary angiography was included and randomly assigned to two groups: group 1 included 92 patients and received position changes and back massage and group 2 included 93 patients and received early ambulation after 3 hours. The used tool was "Post Transfemoral Coronary Angiography Complication Assessment". Findings: Results have indicated that dangerous complications such as bleeding, ecchymosis, and hematoma decreased significantly (P<0.05) in group 1. Conclusion: position changes and back massage within 6 hours post transfemoral coronary angiography have exposed patients to fewer complications. Recommendations: critical care nurses should assess patients for developing complications post transfemoral coronary angiography and use bed rest with position change safely within 6 hours post transfemoral coronary angiography.