ICU is the abbreviation of Intensive Care Intensive Care Unit, which is a specialized treatment place for critically ill patients.1. In the ICU, critically ill patients are managed and treated centrally. The ICU has a spacious environment, and each patient has special monitoring equipment to keep track of the patient’s vital signs and changes in condition. And it is also equipped with special resuscitation and treatment equipment, like defibrillator, fiberoptic bronchoscope, ventilator, dialysis machine, etc., ready for blood gas analysis check, deep vein placement, tracheal intubation and other resuscitation treatments. 2. The intensive care ward is equipped with sufficient and professionally trained doctors and nurses so that patients can receive timely and professional treatment. 3. In addition to the intensive care unit In addition to comprehensive intensive care wards, there are also specialized intensive care wards, such as pediatric intensive care wards in pediatrics, cardiovascular intensive care wards in cardiovascular medicine, neurology intensive care wards in neurology, and respiratory intensive care wards in respiratory medicine.