Over-reading spirometry to improve spirometry education

Overig (Longfunctieonderzoek)

Irene Steenbruggen
Isala Zwolle, Longfunctieafdeling V2.2
Background: Spirometry is increasingly used in primary care. The quality of spirometry according to ATS/ERS in primary care has been inconsistent. Spirometry manoeuvres with low peak flow can have falsely reduced and even falsely increased FEV1 values which may lead to misinterpretation. Spirometry training courses aim to improve the quality of spirometry.
Aim: To identify the most common errors that affect the quality of spirometry in primary care.
Methods: As part of a prospective observational study, 149 spirometry tests from 13 primary care practices, covering 15 general practitioners, were assessed by two lung function analysts using the ATS/ERS acceptability and repeatability criteria. The main outcome measures were the percentages of acceptable spirometry tests and the most common errors.
Results: In total, 149 spirometry tests were included, of which 13.4% met ATS/ERS criteria. Most common errors were seen in reaching a good peak flow and in reaching a smooth and full exhalation.
Conclusion: Relatively few spirometry tests met ATS/ERS criteria. This warrants more focus during spirometry training courses on coaching patients to blast out faster and to keep blowing until told to stop.

Acceptability and Repeatability

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