Evaluating commercially available spirometers.

摘要: This study was designed to: (1) determine the performance characteristics of available spirometers; (2) assess practicality and applicability American Thoracic Society's (ATS) Snowbird Workshop recommendations on Standardization Spirometry; (3) whether spirometer testing could be done with room air. Nineteen spirometers were tested 16 different forced vital capacity waveforms. Fourteen met ATS requirements. Three these 14 had difficulties in determining end expiration. devices requirements for expiratory volume one second. Ten 13 maximal voluntary ventilation satisfactory. The standards recommended by believed to applicable practical. methods need expanded include more patient Testing air is easier simpler and, most devices, just as effective heated humidif...