Reflection has its importance in clinical practice; we always try to succeed and this can be achieved by learning every day of our lives through the experiences we encounter. In this way we can reconsider and rethink our previous knowledge and add new learning to our knowledge base so as to inform our practice. Learning new skills doesn't stop at qualification; this should become second nature to thinking professionals as they continue their professional development throughout their careers (Jasper, 2006). In compliance with current legislation on the protection and respect of individuals' right to anonymity, (Polit and Beck 2007), and for confidentiality, (Munhall 2007), all possible identifiable characteristics of the client have been altered or omitted altogether where the customer identification potential was considered possible or probable. The incident I will describe occurred while I was working in a regional hospital where we managed a large number of cases each year, across a wide range of specialties. The incident involves ventilator-associated pneumonia and the use of CASS. John Baptiste Moliere stated: "It is not only what we do, but also what we do not do, for which we are responsible. (Von Wartburg, 1991)" Responsibility comes from being able to account for something that has been done and to assume responsibility for any errors made. Professional nurses are accountable in several areas, including accountability to the public, client, profession, employer, and themselves (Hood, 2013, p. 307). is aware of having the right to receive the best possible care from professionals in the medical field (Hood, 2013, p. 307). Nurses must be competent in their skills to provide safe and effective care to their patients. at the center of the article ......Clin Infectious Disease 2010 Aug 1;51 Suppl 1:S59-66 doi: 10.1086/653051.Cawley M. (2007) Mechanical ventilation: a tutorial for pharmacists 2007 Feb;27 ( 2):250-66.http://www.ncbi.nlm.nih.gov/pubmed/17253915Hood, L. (2013) Leddy & Pepper's Conceptual Foundations of Professional Nursing. Lippincott Williams & Wilkins 2013Von Wartburg, Walter. (1991) How to Lead with Genius: Some Wisdom for the Savvy Manager. Jasper, M. (2006) Professional Development, Reflection and Decision Making (Vital Notes for Nurses), Wiley-Blackwell; 1 edition 15 November 2006 Munhall, P. (2007) Nursing research: a qualitative perspective. 4th edition. Jones and Bartlett Publishers. Sudbury. p523.Polit, D., Beck, C. (2007) Nursing research: generating and evaluating evidence for nursing practice. 8th edition. Lippincott Williams and Wilkins. Philadelphia. P180.