MODEL RELEASED. Nurse supervising an asthmatic woman patient in using a peak flow meter,a device used to measure respiratory capacity. The peak flow meter measures the maximum flow of air exhaled from the lung,expressed in litres per minute. A typical range is from 50 to 750 litres per minute. The difficulties in breathing experienced by asthmatics are due to sustained attacks of bronchospasm,a narrowing of the bronchi,the air passages of the lungs | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Young, Hattie |
Taille de l’image : | 3543 px × 2702 px |
Model Release : | Disponible |
Property Release : | Non requis |
Restrictions : | - |