L13: Controlled Ventilation (Shih)

Question 1

amount of flow depends on:

Answer 1

compliance of lung and amt. of air in breath

Question 2

PEEP

Answer 2

positive end expiratory pressure
-pressure in the lungs (alveolar pressure) above atmospheric pressure (the pressure outside of the body) that exists at the end of expiration

Question 3

high resistance, low compliance make it difficult for air to flow into alveoli

Answer 3

:)

Question 4

want prolonged inspiration for asthma

Answer 4

:)

Question 5

Paw =

Answer 5

Flow x Resistance + V/Compliance + PEEP

Question 6

compliance = ***

Answer 6

change in V/change in P

Question 7

ascending vs. descending bellow***

Answer 7

-ventilator collapses if ascending bellow disconnected (visual alarm)

Question 8

indication for ventilator

Answer 8

low FiO2
hypoventilation
shunt
V/Q mismatch
(NOT diffusion impairment)