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Flashcards in 20. Response to exercise Deck (9):
1

CO2 transportation

1. increased CO2 production
2. Increased O2 consumption
3. increased ventilation rate ( to meet O2 demand)
4.V/Q ratio from apex to base mor uniform
5. increased pulmonary flow (increased CO)
6. decreased ph in strenuous ( lactic acidosis )

2

O2 and o2 in arterial and venous bolood

1. No change of PaO2 and PaCO2
2. increased in venous CO2 and decreased in venous O2 content

3

V/q

more uniform from apex to base

4

cardiac output

increased

5

• A man undergoes an exercise test. What happens to carbon dioxide production in his muscles? Oxygen consumption? Rate of ventilation?

They are all increased

6

• A man undergoes an exercise test. What happens to the ventilation/perfusion ratio?

It becomes more uniform from apex to base

7

• A personal trainer undergoes strenuous exercise. How does the pH of the body change?

pH decreases during strenuous exercise due to lactic acidosis

8


• PaO2 and PaCO2 ____ (increase/decrease/stay the same) in response to exercise.

Stay the same

9

When a patient exercises, the venous CO2 content ____ (increases/decreases), whereas venous O2 content ____ (increases/decreases).

Increases, decreases