Critical care is the medical specialty concerned with providing emergency treatment to patients who have acute illnesses, injuries, or trauma. Patients may require intensive monitoring and intervention while they are being treated. In some cases, patients may need to receive treatments in hospital settings, but in many cases, these treatments can be provided at home.

Critical care is important because it provides immediate interventions to treat patients who are experiencing severe illness or injury. These interventions may include administering medications, performing procedures, or even transferring patients to hospitals. When patients receive critical care at home, they often avoid unnecessary hospitalization and stay healthier longer.