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Spirometry
Spirometry measures airflow over time. It provides two numeric values that are helpful in the assessment and monitoring of patients with impaired lung function.
Forced Vital Capacity (FVC): total amount of air that can be exhaled following as deep an inhalation as possible Forced Expiratory Volume measured over one second (FEV1): the flow of air during the first second of the Forced Vital Capacity FEV1/FVC: the proportion of air in a person’s lungs that can be blown out in one second