People who have life-threatening illnesses or injuries can benefit from critical care. It may be used to treat post-operative headaches, car accidents, infections, and severe respiratory problems. It necessitates constant, focused attention from a team of properly trained fitness care professionals. Critical care is typically provided in an intensive care unit (ICU) or trauma centre. Monitors, intravenous (IV) tubes, feeding tubes, catheters, respiration equipment, and other systems are common in critical care units.