Zusammenfassung der Ressource
Spirometry
- Restrictive
- FEV1 reduced
- FVC reduced <80%
- Proportional reduction in both so FEV1:FVC ratio NORMAL
- lung volume is reduced - eg, fibrosing alveolitis, scoliosis
- Flow vol loop
- Obstructive
- FEV1 reduced <80%
- FVC normal or slightly reduced
- FEV1:FVC ratio REDUCED <70%
- diffuse airways narrowing: asthma, COPD,
extensive bronchiectasis, cystic fibrosis, lung
tumours
- Flow vol loop
- Flow volume loops
- Normal