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A spirometer is the main piece of equipment used for basic Pulmonary Function Tests (PFTs). Lung diseases such as asthma , bronchitis , and emphysema may be ruled out from the tests. In addition, a spirometer often is used for finding the cause of shortness of breath, assessing the effect of contaminants on lung function, the effect of ...
Spirometry (meaning the measuring of breath) is the most common of the pulmonary function tests (PFTs). It measures lung function, specifically the amount (volume) and/or speed (flow) of air that can be inhaled and exhaled.
Lung volumes. Functional residual capacity (FRC) is the volume of air present in the lungs at the end of passive expiration. [1] At FRC, the opposing elastic recoil forces of the lungs and chest wall are in equilibrium and there is no exertion by the diaphragm or other respiratory muscles.
Pulmonary function testing (PFT) is a complete evaluation of the respiratory system including patient history, physical examinations, and tests of pulmonary function. The primary purpose of pulmonary function testing is to identify the severity of pulmonary impairment. [1]
Maryam Mazidi, Mohammad Bayat, and Amir Letafatkar (2012), The Effect of Spinal Postural Abnormalities on Spirometricindexes of Hormozganmedical University Students (PDF), World Journal of Sport Sciences 6 (4): 331-335, 2012 {}: line feed character in |title= at position 47 CS1 maint: multiple names: authors list
A man undergoing whole body plethysmography. A modern body plethysmograph using ultrasound. A plethysmograph is an instrument for measuring changes in volume within an organ or whole body (usually resulting from fluctuations in the amount of blood or air it contains).
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Spirometry that measures the FEV1/FVC ratio, is the gold standard for diagnosing lower airway obstruction. A decreased ratio indicates obstruction. [12] Chest X-rays can help exclude alternative diagnoses or include other comorbidities. CT images can provide more insight into any possible structural abnormalities. [11]
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