An asthma attack is exactly that - the muscles around the airways and the lining of the air passages tighten. Swelling reduces the amount of air that can pass through the airways and leads to a high-pitched, wheezing sound. Asthma attacks can become life-threatening if the airflow in the lungs becomes severely blocked.
Ambulatory surgery center. Ambulatory surgery centers (ASC), also known as outpatient surgery centers or same day surgery centers, are health care facilities where surgical procedures not requiring an overnight hospital stay are performed.
Ambulatory simply means the patient is not confined to the hospital. Ambulatory care or ambulatory treatment refers to care being provided outside the hospital. It is another term for outpatient. In ambulatory care settings, the patients come for treatment and are not admitted as inpatients to a hospital.