CH7 measuring process of breathing Flashcards
1
Q
What is a peak flow meter
A
- measures rate at which air can be expelled from lungs
2
Q
What is a spirometer
A
- measures different aspects of lung volume
3
Q
What is tidal volume
A
- volume of air that moves into and out of lungs with each resting breath
- around 500cm cubed in most adults at rest
4
Q
What is vital capacity
A
- volume of air that can be breathed in when the strongest possible exhalation is followed by deepest possible inhalation
5
Q
What is inspiratory reserve volume
A
- maximum volume of air you can breathe in over a normal inhalation
6
Q
What is expiratory reserve volume
A
- extra amount of air you can force out of lungs over and above normal tidal volume
7
Q
What is residual volume
A
- volume of air left in lungs when you have exhaled as hard as possible
8
Q
What is total lung capacity
A
Sum of vital capacity and residual volume
9
Q
What is breathing rate
A
Number of breaths per minute
10
Q
What is ventilation rate
A
Total volume of air inhaled over one minute
