This book aims to guide practitioners in the initial management of the critically ill patient within the ward setting. It is aimed at a range of healthcare professionals including junior doctors, registered nurses physiotherapists and students. It is also relevant to practitioners who are moving into a setting that cares for acutely ill patients. It is divided into sections according to the ABCDE approach, as routinely used and taught in critical care and resuscitation training, with the intention of promoting consistent and prompt management of patients, and to prevent further deterioration.