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vent failure
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2 oxygen failure
hypoxemia
-low 02 levels in arterial blood
hypoxia
- tissue
normal shunt
less than 10%
blood in excess of 02
intrapulmonary shunting
amt of ventilation in relation to the amount of pulmonary blood flow
v/q mismatch
decrease in diffusion of 02 & c02 across the alveolar-capilarry membrane due to
change in pressure gradiants
3 hypoxic hypoxia
increase altitude
decrease barometric pressure
decrease inspired 02 tension
seen by a decrease in alveolar ventilation
hypoventilation
VA formula
vt - vd
inadequate blood flow
amount of vt that is used in gas exchange
alveolar vol = Va
poiseullle's law
pressure x16 to maintain flow if airway reduced by half
Author:
imatissa
ID:
43300
Card Set:
vent failure
Updated:
2010-10-19 06:19:12
Tags:
dwayne
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Description:
exam 2
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