Gas Exchange

Question 1

How is the partial pressure of a gas calculated

Answer 1

By taking the concentration of dissolved gas / soluability coefficient

Question 2

Which is more soluable In water, Co2 or O2

Answer 2

CO2

Question 3

Most oxygen in blood is ______ to hemoglobin

Answer 3

Bound

Question 4

For every liter of oxygen that comes in, how much CO2 comes out

Answer 4

0.8

Question 5

How much time is there for diffusion of oxygen, carbon dioxide

Answer 5

0.7 secs

Question 6

In anemia, how come the patient does not hyperventilate in response to low O2 levels

Answer 6

Because the partial pressure of O2 did not go down

Question 7

what has more affinity for hemoglobin: oxygen or carbon monoxide

Answer 7

Carbon monoxide

Question 8

What happens if you have thickening of the respiratory membrane

Answer 8

The speed of diffusion goes down and equilibrium will not be reached, hypoxia

Question 9

How is DLO2 measured

Answer 9

By measuring the diffusion capacity of carbon monoxide

Question 10

When will the diffusion capacity be increased

Answer 10

Exercise, polycythemia. Decreased in thickening of alveoli