3.1.5 Spirometers

Question 1

Vital capacity

Answer 1

Max air breathed in possible

Question 2

Tidal volume

Answer 2

VOlume breathed in or out in a normal breath at rest

Question 3

Breathing rate

Answer 3

Breaths per minute

Question 4

Oxygen uptake

Answer 4

Oxygen used in given time

Question 5

How do spirometers work?

Answer 5

• Person breathes in and out
• CO2 absorbed by soda lime to regulate concentration of CO2 (can cause respiratory diseases)
• Trace is drawn
• Vital capacity, tidal volume and breathing rate can be calculated
• Oxygen uptake can be calculated by the change in volume as CO2 decreases