Physiology

Question 1

Normal lung volumes for Expiratory lung volume, Tidal Volume, Inspiratory Reserve Volume, Residual Volume?

Answer 1

ERV: 1,000 mL
TV: 6-8 cc/kg or 500 mL
IRV: 2-3,000 mL
RV: 1,500 mL

Question 2

What is closing capacity?

Answer 2

Lung volume at which the small airways in the dependent part of the lungs begin to close. It is the sum of Residual Volume and Closing Volume