spirometry
(noun)
 the measurement of the volume of air that a person can move into and out of the lungs
Examples of spirometry in the following topics:
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Chronic Obstructive Pulmonary Disease (COPD)- The diagnosis of COPD is confirmed by spirometry, a test that measures the forced expiratory volume in one second (FEV1), which is the greatest volume of air that can be breathed out in the first second of a large breath.
- Spirometry also measures the forced vital capacity (FVC), which is the greatest volume of air that can be breathed out in a whole, large breath.
 
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Lung Volumes and Capacities- Lung volumes are measured by a technique called spirometry.
- An important measurement taken during spirometry is the forced expiratory volume (FEV), which measures how much air can be forced out of the lung over a specific period, usually one second (FEV1).
 
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Breathing Patterns
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Asthma- Spirometry is needed to establish a diagnosis of asthma.