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Lung
| Question | Answer |
|---|---|
| ↓ FEV₁/FVC ratio | Obstructive lung disease |
| Normal or ↑ FEV₁/FVC ratio | Restrictive lung disease |
| Problem with airflow → hard to exhale | Obstructive lung disease |
| ↑ Residual Volume (RV), ↑ TLC | Obstructive lung disease |
| Narrow, small flow-volume loop | Restrictive lung disease |
| Obesity | Restrictive lung disease |
| COPD | Obstructive lung disease |
| Emphysema | Obstructive lung disease |
| Sarcoidosis | Restrictive lung disease |
| Pulmonary Fibrosis | Restrictive lung disease |
| Asthma | Obstructive lung disease |