3.9 Respiratory Applied Physiology

Question 1

What happens to the tidal volume as you increase your physical activity?

Answer 1

Increases, along with the respiratory rate so you breath more deeply

Question 2

How much of an increase in the a-v O2 difference is there when you increase physical activity?

Answer 2

3 fold increase. At rest, you extract 4-5 ml O2 and during exercise you extract 15 ml

Question 3

Why is it beneficial to have a rightward shift in the oxygen hemoglobin curve during exercise?

Answer 3

Rightward shift allows for easier dissociation of the oxygen from the hemoglobin and into the tissues

Question 4

As you dive, what happens to the volume and the pressure of a gas?

Answer 4

Volume decreases and pressure increases while diving. Opposite happens when ascending

Question 5

What happens to the inspired O2 pressure when climbing above sea level?

Answer 5

the inspired pressure decreases

Question 6

What two factors play a role on the conditions experienced when climbing in altitude?

Answer 6

The speed in which you are ascending and the altitude itself

Question 7

What are the symptoms of acute mountain syndrome?

Answer 7

Headache, nausea, dizziness, breathlessness, fatigue, and insomnia

Question 8

What are the symptoms of high altitude pulmonary edema (HAPE)?

Answer 8

Dyspnea, dry cough progressing to one that produces bloody sputum, pyrexia during auscultation