Critical Care (also known as intensive care) is a specialized branch of medicine focused on providing life-support and comprehensive, round-the-clock monitoring for patients with life-threatening illnesses, severe injuries, or major surgical complications. Delivered within an Intensive Care Unit (ICU) by a multidisciplinary team led by intensivists, critical care utilizes advanced technology and continuous physiological monitoring to stabilize vital organ functions, manage multi-organ failure, and support patients through acute medical emergencies.