Respiratory volumes

Question 1

What is residual volume?

Answer 1

Volume of air which is not actively moved

Question 2

What is tidal volume?

Answer 2

In normal quiet breathing it is the amount of air exchanged with each breath.

Question 3

What is inspiratory reserve volume?

Answer 3

Ability to inspire more than 500 mls of air

Question 4

What is expiratory reserve volume?

Answer 4

Forced expiration that will vent an extra 1200mls of air above the tidal volume:

Question 5

What are the 4 lung capacities and their volumes?

Answer 5

1. functional residual capacity. 2400ml
2. inspiratory capacity. 3600ml
3. Vital Capacity 4800ml
4. Total lung capacity. 6000ml

Question 6

What is functional residual capacity?

Answer 6

Residual volume + expiratory reserve

Question 7

What is inspiratory capacity?

Answer 7

Tidal volume + inspiratory reserve volume.

Question 8

What is vital capacity?

Answer 8

Inspiratory reserve + tidal volume + expiratory reserve volume

Question 9

What is total lung capacity?

Answer 9

Total from all volumes

Question 10

How much volume remains in air passages and what is it known as?

Answer 10

150mls

Anatomical dead space

Question 11

What is minute volume?

Answer 11

Tidal volume X by breathing rate per minute

Question 12

What is alveolar ventilation rate?

Answer 12

Gas available to the alveoli per breath X by resp rate

Question 13

What does FEV1 mean?

Answer 13

Force expiratory volume in one second and is a measure of ease with which air is expelled from the lung

Question 14

What are the four lung volumes and what are their capacities?

Answer 14

1. Residual volume- 1200ml
2. expiratory reserve volume - 1200ml
3. Tidal volume- 500ml
4. Inspiratory reserve volume- 3100ml