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Exam (elaborations)

Pilbeams Mechanical Ventilation

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Pilbeams Mechanical Ventilation

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  • September 11, 2024
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  • 2024/2025
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TEST BANK For Pilbeams Mechanical Ventilation 8th
Edition by Cairo

define Scalar - ANSWER:used to specify flow, pressure, and volume waveforms that
are graphed relative to time

How many different types of wave forms are produced with scalars in mechanical
ventilation and what are they? - ANSWER:6
1. rectangular (constant
2. descending ramp
3. ascending ramp
4. sinusoidal
5. rising exponential
6. decaying exponential

The flow of gas into the lungs depends on the difference between __________ and
_________ - ANSWER:the pressure from the vent and the pressure inside the lungs

does a greater pressure gradient increase or decrease the flow of gas? -
ANSWER:increase

If there is an increase in flow, the lungs will fill faster or slower? - ANSWER:faster

Flow = - ANSWER:V/Ti

The amount of pressure required to inflate the lungs depends on the patients what?
(2) - ANSWER:1. airway resistance
2. lung compliance

How do stiff lungs effect lung compliance and required pressures? -
ANSWER:Decrease in compliance
higher pressures

Very compliant lungs are easy to inflate and require what kind of pressures? -
ANSWER:low pressures

Change in pressure= - ANSWER:change in volume/lung compliance

What is the most important factor affecting air way resistance? - ANSWER:airway
diameter

If air way resistance decreases the airway diameter will increase or decrease? -
ANSWER:increase (this will also increase flow)

The volume delivered depends on what 2 things? - ANSWER:1. amount of flow

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