Examlex
All of the following are true of institutional review boards (IRBs) in the United States EXCEPT:
Contrast Medium
A substance that makes internal organs denser and blocks the passage of X-rays to photographic film. Introducing a contrast medium into certain structures or areas of the body can provide a clear image of organs and tissues and highlight indications of how well they are functioning.
Fluoroscopy
An imaging technique that uses X-rays to obtain real-time moving images of the interior of an object or body, often used in diagnostic and treatment procedures.
Gastrointestinal Angiography
A medical imaging technique used to visualize the blood vessels in the gastrointestinal tract for the diagnosis or treatment of conditions causing gastrointestinal bleeding or blockages.
Upper GI Bleeding
A medical condition characterized by bleeding in the upper part of the gastrointestinal tract, including the esophagus, stomach, and the first part of the small intestine.
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