View New Customer Application. Produced by Vibrio cholerae, cholera toxin (CT) is a multimeric enterotoxin that transfers ADP-ribose to a G protein, locking adenylate cyclase in an 'on' position.
An echocardiogram (echo=sound + card=heart + gram=drawing) is an ultrasound test that can evaluate the structures of the heart, as well as the direction of blood flow within it. Technicians specially trained in echocardiography produce the images and videos, often using a special probe or transducer that is placed in various places on the chest wall, to view the heart from different directions.
Introduction. An echocardiogram is an ultrasound of the heart. It is very similar to an ultrasound of an unborn baby. The test shows moving images of your heart and takes pictures. This will help your doctor evaluate your heart's health. A technologist uses a gel to slide a microphone-like device over the chest area. This provides a live picture of your heart and valves.