Resp Mechanics Lect 2

Question 1

What is the inspiratory reserve volume

Answer 1

Extra volume of air that can be maximally inspired over the typical resting tidal volume 3000ml

Question 2

What is the inspiratory capacity

Answer 2

Maximum volume of air that can be inspired at the end of s normal quiet expiration 3500ml

Question 3

What is the expiratory reserve volume

Answer 3

Extra volume of air that can be actively expired by maximal contraction beyond the normal volume of air after a resting tidal volume 1000ml

Question 4

What is the residual volume

Answer 4

Minimum volume of air remaining in the lungs even after a maximal expiration
1200ml

Question 5

What is the functional residual volume

Answer 5

Volume of air in lungs at the end of a normal passive expiration 2200ml

Question 6

What is the vital capacity

Answer 6

Maximum volume of air that can be mixed out during a single breath following a maximal inspiration 4500ml

Question 7

What is the total lung capacity

Answer 7

Maximum volume of air that lungs can hold 5700ml

Question 8

What is the dynamic volume FEV1%

Answer 8

Forced expiratory volume in one second

Determined by FEV1/FVC
normal is > 75%

Question 9

What is the difference when a pt has an obstructive or restrictive lung disease on the dynamic volum e

Answer 9

Obstructive - asthma

Question 10

What is the tidal volume

Answer 10

Volume of air entering/leaving lungs during a single breath 500ml