Many spirometers used in primary care deemed inaccurate

Many spirometers used in primary care deemed inaccurate

(HealthDay)—Spirometers used in primary care offices are frequently inaccurate, according to a study published online Sept. 6 in the Annals of the American Thoracic Society.

Matthew J. Hegewald, M.D., from Intermountain Healthcare in Murray, Utah, and colleagues tested 17 spirometers used in offices with a waveform generator to assess spirometer accuracy. They determined the clinical significance of inaccurate instruments by applying the forced expiratory volume in one second (FEV1)/forced vital capacity (FVC) error from an obstructed waveform to a set.

The researchers found that only one of the spirometers met the accuracy criteria, with mean errors ranging from 1.7 to 3.1 percent for FVC, FEV1, and FEV1/FVC. Twenty-eight percent of tests were re-categorized from obstructed to non-obstructed when applying the percent error to a clinical data set. Sixty percent of the spirograms reviewed were considered acceptable for clinical use. No correlation was seen between the number of tests performed by a clinic and quality of spirometry.

"Our results raise concerns regarding the utility of spirometry obtained in primary care offices without greater attention to quality assurance and training," the authors write.


Explore further

Fiber intake linked to measures of lung function

More information: Full Text (subscription or payment may be required)

Copyright © 2016 HealthDay. All rights reserved.

Citation: Many spirometers used in primary care deemed inaccurate (2016, September 15) retrieved 13 December 2019 from https://medicalxpress.com/news/2016-09-spirometers-primary-deemed-inaccurate.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
0 shares

Feedback to editors

User comments