Integrated Responses of the Respiratory System

Question 1

During moderate exercise, the arterial PPO2 and PCO2 ___ (decrease, same, increase)

Answer 1

Same

Question 2

During strenuous exercise, the arterial pH ___ (decreases, same, increases)

Answer 2

decreases

decrease pH = acidic = more CO2

Question 3

At high altitudes, there is an increase in ___

Answer 3

1. RR increase
2. pH low = acidic
3. HgB concentration
4. 2,3 BPG
5. Hypoxic vasoconstriction

Question 4

___ type of hypoxia where there is hypoventilation and low PaO2

Answer 4

Hypoxic Hypoxia

Low PaO2 = hypoxia
hypoventilation = high PaCO2

Question 5

Type of hypoxia where there is decreased cardiac output

Answer 5

Stagnant Hypoxia

Question 6

Type of hypoxia where there is impaired O2 extraction leading to decreased CaO2-CvO2 and increase SVO2

Answer 6

Histotoxic hypoxia