Book excerpt: The book describes step-wise management of clinical emergencies seen every day in Intensive care units (ICUs. As a practical guide, clinicians can refer to it on a day-to-day basis during their work hours, or while in transit to update their knowledge. Targeted readers are intensivists, critical care specialists, and residents involved in the care of patients admitted in ICUs. This handbook covers an array of specialities such as cardiology, pulmonology, gastroenterology, neurology, nephrology, traumatology, and toxicology. This monograph provides point-of-care treatment guidance and will serve as a ready-reckoner for physicians to quickly learn the management steps in a methodical manner.