Respiratory Physiology = Spirogram

Question 1

What are the 4 lung volumes in a normal spirogram

Answer 1

1. Tidal Volume
2. Inspiratory Reserve Volume
3. Expiratory Reserve Volume
4. Residual Volume

Question 2

The volume of air entering or leaving the lungs during a single breath is what?

Answer 2

Tidal Volume

Question 3

What is the approximate amount of tidal volume?

Answer 3

500mL

Question 4

Extra air in the lungs that can be maximally inspired by force over the Tidal Volume is what?

Answer 4

Inspiratory Reserve Volume

Question 5

What is the approximate amount of IRV?

Answer 5

3000mL

Question 6

Extra air that can be expired by force at the end of TV is what?

Answer 6

Expiratory Reserve Volume

Question 7

What is the approximate amount of ERV?

Answer 7

1000mL

Question 8

The minimum volume of air that remains in the lungs even after max. ERV is what?

Answer 8

Residual Volume

Question 9

What is the approximate amount of Residual volume that must remain in the lungs?

Answer 9

1200mL

Question 10

What lung volume cannot be measured by spirometry?

Answer 10

Residual Volume

Question 11

What are the 4 lung capacities?

Answer 11

1. Inspiratory Capacity
2. Functional Residual capacity
3. Vital Capacity
4. Total Lung Capacity

Question 12

The maximum volume of air that can be inspired is what? What 2 lung volumes make this up?

Answer 12

Inspiratory Capacity

TV + IRV = 3500mL

Question 13

The volume of air in the lungs at the end of a normal passive expiration is what? What 2 lung volumes make this up?

Answer 13

Functional Residual Capacity

ERV + RV = 2200mL

Question 14

The maximum volume of air that can be moved out during a single breath following a maximal inspiration is what? What lung volumes make this up?

Answer 14

Vital Capacity

IRV + TV + ERV = VC = 4500mL

Question 15

Maximum volume of air the lungs can hold is what? What lung volumes make this up?

Answer 15

Total Lung Capacity

VC + RV = 5700mL