The upper gastrointestinal (GI) series examines the upper and middle portions of the GI tract. The person being tested swallows a "shake" of barium and water (barium contrast material) followed by ...
This hand-held device measures airflow (how fast air is blown out of the lungs). Patients can use peak-flow meters to measure their own airflow regularly which allows asthmatic patients to predict an ...
9 用語
