Obstructive vs. Restrictive Lung disease
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This document discusses the differences between restrictive and obstructive lung diseases. Restrictive lung diseases are characterized by a reduction in total lung capacity below 80% of predicted value, while obstructive lung diseases are characterized by a reduction in airflow, seen through a decreased forced expiratory volume in 1 second and ratio of forced expiratory volume to forced vital capacity. Key lung volumes and capacities such as tidal volume, inspiratory reserve volume, and residual volume are also defined.
Obstructive vs. Restrictive Lung disease
- 1. RESTRICTIVE VS. OBSTRUCTIVE LUNG DISEASES Fatima AlAwadh
- 2. INTRODUCTION LUNG VOLUMES AND CAPACITIES 2.5 L 0.5 L 1.5 L 1.5 L Inspiratory Reserve Volume Tidal Volume Residual Volume Expiratory Reserve Volume Inspiratory Capacity Functional Residual Capacity Vital Capacity Total Lung Capacity
- 3. 2.5 L 0.5 L 1.5 L 1.5 L OBSTRUCTIVE Normal Obstructive Forced Vital Capacity N or Forced Expiratory Volume in 1sec Total Lung Capacity N or Residual Volume FEV1 / FVC
- 4. RESTRICTIVE Normal Restrictive Forced Expiratory Volume in 1sec N or FEV1 / FVC N or Residual Volume Forced Vital Capacity Total Lung Capacity
- 5. OBSTRUCTIVE VS. RESTRICTIVE Obstructive disorders: Obstructive disorders are characterized by a reduction in airflow, particularly the FEV1 and the FEV1/FVC. Restrictive disorders: Restrictive disorders are characterized by a reduction in lung volume, specifically a TLC < 80% of the predicted value.
- 6. “Thank You”