Assessment of lung function. A woman breathing into a peak flow meter. This is used to assess the efficiency of the respiratory system in exhaling air. It may be used as an indicator of the effects of conditions such as asthma and bronchitis,where the airways may be constricted due to inflammation. Photographed at Chomutov Hospital,Czech Republic | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Fraser, Simon |
Taille de l’image : | 4852 px × 3636 px |
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