Take the IPF sound challenge!

The majority of IPF patients present with typical dry, bibasilar inspiratory velcro crackles on auscultation and the assessment of fine crackles is currently the only practical tool in early IPF diagnosis.1

The IPF sound challenge, an application developed by Boehringer Ingelheim, allows you to playfully practice identifying various respiratory conditions, including IPF.

Take the challenge and test your ear now.

Also available for smartphones:



  1. Cottin V, et al. Velcro crackles: the key for early diagnosis of idiopathic pulmonary fibrosis? Eur Respir J 2012;40:519–521.