اسپیرومتری

thumb|right|Doing spirometry 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. Spirometry is helpful in assessing breathing patterns that identify conditions such as asthma, pulmonary fibrosis, cystic fibrosis, and COPD. It is also helpful as part of a system of health surveillance, in which breathing patterns are measured over time.

Key facts

Diagnostic.Caption: Flow-Volume loop showing successful FVC maneuver. Positive values represent expiration, negative values represent inspiration. At the start of the test both flow and volume are equal to zero (representing the volume in the spirometer rather than the lung). The trace moves clockwise for expiration followed by inspiration. After the starting point the curve rapidly mounts to a peak (the peak expiratory flow). (Note the FEV1 value is arbitrary in this graph and just shown for illustrative purposes; these values must be calculated as part of the procedure).
Diagnostic.MeshID: D013147
Diagnostic.Name: Spirometry
Diagnostic.Image: Flow-volume-loop.svg

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Research

39,017 papers

Standardisation of spirometry.The European respiratory journal · 2005
Spirometry.Respiratory care clinics of North America · 1997
Spirometry.Clinical reviews in allergy & immunology · 2009
Spirometry in Occupational Health-2020.Journal of occupational and environmental medicine · 2020
[Spirometry: basic concepts].Revista alergia Mexico (Tecamachalco, Puebla, Mexico : 1993) · 2019

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