The domain of critical care is gradually expanding its horizon associating many specialties and sub/superspecialties from medicine and surgical fields. The content of this book has been divided into various sections, with a focus on the main theme which remains clinically cohesive. The various sections include General Critical Care, Respiratory Critical Care, Hepatic, Gastrointestinal and Endocrine Emergencies in ICU, Neurocritical Care, Nephrocritical Care, Infections and Antibiotics, Obstetric Critical Care, Trauma Critical Care, Cardiac Critical Care, Poisoning, and Oncocritical care.