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.
Word Cloud. Ambulatory Surgical Center Payments Versus Hospital Outpatient Payments: An Interstate Comparison and Analysis. Although the common perception may be that using an Ambulatory Surgical Center (ASC) will save money compared to using a hospital for outpatient surgery, that may not always be the case. In fact, the results can vary greatly from state to state.