Aspiration may occur under several circumstances. 1  Before the swallowing reflex is triggered, when the airway has not elevated or closed. 2  During the swallowing if the laryngeal valves are not functioning adequately. 3  After the swallow when the larynx lowers and opens for inhalation.
These initials refer to the doctor's credentials â they indicate the type of medical school the doctor attended and the licensing exam they took to become a doctor. 1  MD stands for Doctor of Medicine, and is the most common type of degree earned by doctors who practice medicine in the United States. DO stands for Doctor of Osteopathic Medicine, and refers to a doctor who practices medicine whose medical school training included a focus on the muscular and skeletal systems to treat problems throughout the body. Both MD's and DO's attend medical school and take exams to become licensed, practicing physicians.
Dun & Bradstreetâs D-U-N-S Number is a unique nine-digit identification sequence which provides unique identifiers of single business entities, while linking corporate family structures together. The D-U-N-S Numbering system is a widely recognised standard for identifying businesses among thousands of companies, marketplaces and regulatory entities.