7.3 Spirometry

Question 1

What does a spirometer measure?

Answer 1

Different aspects of lung volume

Question 2

What are the 6 aspects of lung volume?

Answer 2

1. Tidal volume
2. Vital capacity
3. Inspiratory reserve volume
4. Expiratory reserve volume
5. Residual volume
6. Total lung capacity

Question 3

What does tidal volume show?

Answer 3

Volume of air moving in + out of lungs with each resting breath.
15% of vital capacity

Question 4

What does vital capacity show?

Answer 4

Volume of air inhaled when strongest exhalation is followed by strongest inhalation

Question 5

What is inspiratory reserve volume?

Answer 5

Maximum volume of air you can inhale above a normal inhalation

Question 6

What is expiratory reserve volume?

Answer 6

Extra amount of air you can force out of your lungs above the normal tidal volume you exhale

Question 7

What is residual volume?

Answer 7

Volume of air left in lungs after strongest possible exhalation.

Question 8

What is total lung capacity?

Answer 8

Sum of vital capacity + residual volume

Question 9

What is the breathing rate?

Answer 9

breaths/min

Question 10

What is ventilation rate?

Answer 10

vol. of air inhaled/min

Question 11

How do you calculate ventilation rate?

Answer 11

                                        l
   Breathing rate             l      Tidal Volume