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11 Cards in this Set
- Front
- Back
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ventilator will not work when
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o2 is < 28psi
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flow through ventilator circuit controlled by solenoid valve that is electronically controlled by rr and IE ration
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inhalation
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flow through ventilator is contolled by
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solenoid valve
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solenoid valve is controlled by
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rr and IE ratio
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driving gas is approx what % rm air
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80% rm air
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power relief valve opens when?
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solenoid valve closes and there is a lack of driving pressure in the system and driving gas is released from bellows chamber
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spring valve limits peak inspiratory pressure of ventilator
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pressure limit control
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if pts PIP >spring pressure, valve is moved away from valve seat and driving gas is vented to the atmosphere--bellows stop moving
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pressure limit control
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pressure limit control are used in what ventilators?
what kind of pts? |
vol control ventilators
children, pt w/ blebs, hx pneumos |
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provides pressure or volume controlled ventilation
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piston ventilator
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no mandatory peep
requires min or no pneumatic oxygen single circuit--anesthetic gas accurate tv |
piston ventilator
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