Prep for USMLEPrep for USMLE
         Forum      |     Resources New Posts   |   Register   |   Login





 resp. system  



Post Reply  
  • 0/5
  • 1
  • 2
  • 3
  • 4
  • 5


Author3 Posts
  #1

Bronchoalveloar segments of lung with low ventilation/perfusion ratios may collapse when 100% O 2 is inhaled for 1 hr because:

a. pulmonary surfactant is inactivated
B. O2 toxicity causes alveolar edema
C. CO 2 elimination is greater than normal
D. interstitial edema arond small airways causes airway closure
E. gas is removed by blood faster than it enters the unit by ventilation




  #2

D? extreme vasodilation of the regional capillaries?


  #3

ANSWER IS E





Bookmark and Share



This thread is closed, so you cannot post a reply.



Login or Register to post messages








show Similar forum topics

resp. system
resp. system
resp
show Related resources

How the Immune System Works








Advertise | Support | Premium | Contact