Pulmonary gas exchange

Question 1

What is Fi02

Answer 1

The fraction of inspired 02- usually 0.21

Can be increased in patients with hypoxemia

Question 2

Normal gas exchange

Answer 2

Bulk flow- movement of fluid and other particles. can be laminar or turbulent 
Down a pressure gradient 
Diffusion past bronchiole 
Pa02: 10.5-13 Kpa
PaCO2: 4.8- 6 Kpa