Gas exchange
Gas exchange: The primary function of the lungs involving the transfer of oxygen from inhaled air into the blood and the transfer of carbon dioxide from the blood into the exhaled air.
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- Gas, intestinal
Gas, intestinal: The complaint referred to as “intestinal gas” is a common one and the discomfort can be quite significant. Everyone has gas and eliminates it by burping or passing it through the rectum. In many instances people think they have too much gas when in reality they have normal amounts. Most people produce 1 […]
- Gas, laughing
Gas, laughing: Nitrous oxide, is a gas that is used in dentistry for its sedative or analgesic properties in the management of fear and anxiety, especially for children and special needs patients. The patient must be able to breathe normally through the nose, or the effectiveness of the gas is greatly reduced. It is contra-indicated […]
- Gastric atrophy
Gastric atrophy: A condition in which the stomach muscles shrink and become weak. Gastric atrophy may result in a lack of digestive juices due to accompanying shrinkage of the digestive glands.
- Gastric banding
A laparoscopic adjustable gastric band, commonly referred to as a lap band, is an inflatable silicone device surgically implanted around the top portion of the stomach to help a person lose weight. A band is placed around the upper part of the stomach, creating a small pouch that can hold only a small amount of […]
- Gastric emptying study
A test that evaluates the process of emptying food from the stomach. For a gastric emptying study, a patient eats a meal in which the food or beverage is mixed with a small amount of radioactive material. A scanner that acts like a Geiger counter is placed over the stomach to monitor the amount of […]