Lung Function Assessment Quiz

Question 1

the most fundamental measurement of lung function is?

Answer 1

arterial pressure of oxygen or hemoglobin saturation

Question 2

Which is the quickest, cheapest and least invasive way to tell if someone has adequate oxygen in their blood?

Answer 2

look at their fingernail beds and see if they are pink

Question 3

When you take an average tidal breath at rest about 30% of the air you inhale is not involved in gas exchange and provides you with no oxygen because?

Answer 3

the conducting airways do not contain alveoli

Question 4

Concerning the total lung capacity (TLC) and the vital capacity (VC), which is greater?

Answer 4

TLC>VC

Question 5

What is the FEV1/FVS percentage in adults with Restrictive Lung Disease?

Answer 5

90%

Question 6

What is the FEV1/FVS percentage in adults with Healthy Lungs?

Answer 6

80%

Question 7

What is the FEV1/FVS percentage in adults with Obstructive Lung Disease?

Answer 7

60%

Question 8

Small airways (bronchioles) without cartilaginous rings tend to collapse and limit airflow rates during forced exhalation because and when?

Answer 8

• because they are surrounded by high pressures in the alveoli
• when elastic fibers in the airways begin to RELAX later in the forced exhalation