Extract
The diagnosis of asthma is usually based on typical symptoms, family history, audible wheeze, peak flow, spirometry, possibly in conjunction with atopy and blood eosinophilia, as well as response to treatment. In cases for which the diagnosis is less clear-cut, other tests may be required, including impulse oscillometry (IOS), exhaled nitric oxide fraction (FeNO) and bronchial challenge testing (figure 1).
Abstract
A pragmatic process should be considered in patients with a questionable asthma diagnosis http://ow.ly/VRNr30fwzgs
Footnotes
Conflict of interest: Disclosures can be found alongside this article at erj.ersjournals.com
- Received July 15, 2017.
- Accepted August 16, 2017.
- Copyright ©ERS 2017