CH9.2-3 Lung Volumes

What is the approximate total volume of healthy adult lungs?

• 4 liters

• 5 liters

• 6 liters

• 7 liters

What tool is used to measure static lung volume?

• Flow volume meter

• ECG

• Spirometer

• Thermometer

Which type of lung volume is measured over a specific period of time?

• Static

• Dynamic

• Residual

• Functional

What volume of air is inhaled or exhaled during normal breathing?

• IRV

• ERV

• TV

• VC

What is the volume of air that remains in the lungs after maximal exhalation?

• TV

• VC

• FRC

• RV

Which lung volume cannot be measured by a spirometer?

• TV

• RV

• VC

• IRV

What does FEV1 measure?

• Maximum inhaled air

• Total lung capacity

• Air expelled in one second

• Air left after exhalation

A person with asthma would likely have a lower:

• TV

• VC

• FEV1/FVC ratio

• IRV

What is the formula for Total Lung Capacity (TLC)?

• IRV + TV + ERV

• IRV + TV + ERV + RV

• IRV + ERV + VC

• TV + VC

What does Vital Capacity (VC) measure?

• Air remaining after normal expiration

• Total air that can be forcibly exhaled after maximum inhale

• Volume inhaled during regular breathing

• Lung elasticity