Peak flow meter. This device,also known as a spirometer,is used to measure peak expiratory flow rate - a person's ability to breathe out. This can indicate issues with partial obstruction of the bronchi,in conditions such as asthma | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 4192 px × 4192 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |