ICU stands for Intensive Care Unit. It is a specialized department in a hospital that provides highly advanced and specialized care for critically ill patients. The ICU is staffed by a multidisciplinary team of healthcare professionals, including doctors, nurses, respiratory therapists, and other specialized personnel who are trained in managing and monitoring critically ill patients. The primary purpose of the ICU is to provide constant and intensive monitoring of patients who require life-supporting interventions and treatments. These patients are often dealing with life-threatening conditions, such as severe infections, organ failure, major surgeries, or trauma. The ICU is equipped with advanced medical technology and equipment to monitor vital signs, administer medications, and provide life-sustaining interventions, such as mechanical ventilation, dialysis, and hemodynamic support.