USMLE Forums - View Single Post - Pulmonary Shunting, Please Explain?
View Single Post
  #1  
Old 12-01-2010
schiwei's Avatar
schiwei schiwei is offline
USMLE Forums Scout
 
Steps History: Not yet
Posts: 81
Threads: 51
Thanked 48 Times in 19 Posts
Reputation: 47
Lungs Pulmonary Shunting, Please Explain?

How would blood flow obstruction during shunt cause pO2 and pCO2 to approach that of mixed venous blood? Should one consider contributions from healthy alveoli in this question or not?
Also, when V/Q approaches infinity how would pO2 and pCO2 approach that of inspired air?

Last edited by schiwei; 12-01-2010 at 07:10 AM. Reason: forgot to add s.th. relevant
Reply With Quote