charge account - credit extended by a business to a customer. credit account, open account. charge account credit, open-end credit, revolving credit - a consumer credit line that can be used up to a certain limit or paid down at any time. revolving charge account - a charge account that does not have to be paid to zero balance.
Otoacoustic Emissions Otoacoustic emissions (OAEâs) are low level, inaudible sounds produced by the outer hair cells of the inner ear (cochlea). OAEâs can either occur spontaneously or in response to clicks or tones.
What Happens During an Endoscopic Ultrasound? Endoscopic ultrasound (EUS) is a procedure that allows a doctor to obtain images and information about the digestive tract and the surrounding tissue and organs, including the lungs. Ultrasound testing uses sound waves to make a picture of internal organs. During the procedure, a small ultrasound device is installed on the tip of an endoscope. An endoscope is a small, lighted, flexible tube with a camera attached. By inserting the endoscope and camera into the upper or the lower digestive tract, the doctor is able to obtain high-quality ultrasound images of organs.