Identify the flow volume loop pattern of each. Click to see my answers.

1. Pattern
2. Pattern
3. Pattern
4. Pattern
5. Pattern
6. Pattern
7. Pattern
8. Pattern
9. Pattern
10. Pattern

• Why is there a difference in the appearnace of inspiratory and expiratory limb?
• What is the difference between variable and fixed obstruction?
• Can you differentiate variable intrathoracic large airway from bronchial tree obstruction?
• Consider reasons for fixed large airway obstruction.