Blotter definition, a piece of blotting paper used to absorb excess ink, to protect a desk top, etc. See more.
Definition. An esophagogastroduodenoscopy (EGD), which is also known as an upper endoscopy or upper gastrointestinal endoscopy, is a diagnostic procedure that is performed to view the esophagus, stomach, and duodenum (part of the small intestine).
No, they are usually only indicated when a person has an enlarged thyroid or symptoms suggesting thyroid dysfunction. Routine screening of the thyroid is usually accomplished using thyroid tests such as TSH and free T4.