This book, written specifically for dental care professionals, aims to discuss generally what constitutes a medical emergency, providing a step-by-step sequence for assessing the ‘sick patient’, and describing in detail how to manage each component of the assessment. The book is divided into three sections. Section one describes the fundamental systems of the body such as the respiratory system, the cardiovascular system, and the nervous system. Section two discusses emergency procedures such as defibrillation and the administration of drugs. Section three describes in detail the medical emergencies most commonly encountered in the dental setting and how they should be managed, for example anaphylaxis, angina, faints, epileptic seizures, hyperventilation, thereby effectively producing a step-by-step guide. This book is directed towards continuing professional development with a view to increasing understanding, awareness, knowledge, confidence and competence.