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Related Experiment Videos

Evaluating commercially available spirometers

R M Gardner, J L Hankinson, B J West

    The American Review of Respiratory Disease
    |January 1, 1980
    PubMed
    Summary
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    Most spirometers accurately measure lung function according to American Thoracic Society (ATS) standards. Testing with room air is effective, simplifying spirometry procedures for reliable forced spirogram recordings.

    Area of Science:

    • Pulmonary Function Testing
    • Medical Device Evaluation

    Background:

    • Spirometry is crucial for diagnosing and monitoring respiratory diseases.
    • Standardization of spirometry ensures reliable and comparable results.

    Purpose of the Study:

    • Evaluate the performance of available spirometers.
    • Assess the practicality of American Thoracic Society (ATS) standardization recommendations.
    • Determine the feasibility of spirometry using room air.

    Main Methods:

    • Tested 19 spirometers using 16 forced vital capacity waveforms.
    • Assessed device compliance with ATS criteria for forced vital capacity (FVC), forced expiratory volume in one second (FEV1), and maximal voluntary ventilation (MVV).
    • Compared testing with room air versus heated, humidified air.

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    Main Results:

    • 14 out of 19 spirometers met ATS FVC requirements; 14 met FEV1 requirements.
    • 10 out of 13 devices were satisfactory for MVV testing.
    • ATS recommendations were found practical and applicable, though testing methods could be expanded.
    • Room air testing proved simpler and as effective as heated air for most devices.

    Conclusions:

    • Most spirometers can accurately record forced spirograms.
    • Compliance with ATS standards ensures device interchangeability for spirometry.
    • Room air testing is a viable and simpler alternative for spirometer calibration.