Diffusion

Question 1

When gases move from higher to lower pressure, it is through which process?

Answer 1

Passive diffusion

Question 2

DM in Fick’s Law represents:

Answer 2

Diffusion capacity

Question 3

T = in the DM formula is

Answer 3

Resistance

Question 4

What is the term for scar tissue found in lungs?

Answer 4

Fibrosis

Question 5

Put in order the gases in terms of solubility from most to least
CO2
O2
CO

Answer 5

CO > CO2 > O2

Question 6

What is the molecular wt of O2

Answer 6

32

Question 7

What is the % of O2 found in the environment?

Answer 7

21%

Question 8

What is the pressure in alveoli of O2 (pAO2)?

Answer 8

150 mmHg

Question 9

Describe the relationship between thickness and diffusion

Answer 9

less thickness = more diffusion

Question 10

What is used when there is CO poisoning?

Answer 10

Supplemental O2 (100%) to displace it

Question 11

Which gas is lighter, O2 or CO2?

Answer 11

O2

Question 12

What are the only breeds of dogs that can have emphysema?

Answer 12

Westies

Question 13

The alveolar membrane can be increased with what dz?

Answer 13

Pulmonary fibrosis

Question 14

At high altitude, what happens to pressure?

Answer 14

It decreases