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10 Cards in this Set
- Front
- Back
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What are the power sources of double-circuit ventilators?
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Electronic and pneumatic
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Describe the NAD double-circuit ventilator (AV-E)
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Electronic, pneumatically/electronically controlled, double circuit, volume preset, time cycled, optional pressure limit control. Cna set frequency, I:E
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How does the NAD double-circuit ventilator compress its bellows?
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Uses high pressure O2 to entrain room air
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How does the Ohmeda double-circuit ventilator compress its bellows?
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Uses O2 or air
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Where are the bellows located in the NAD double-circuit ventilator?
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To the left of the flowmeters
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Where are the bellows located in the Ohmeda double-circuit ventilator?
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To the left of the absorber
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Describe the movement of ascending bellows
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Up during expiration, down during inspiration
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What happens to ascending bellows with a patient disconnect?
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Bellows remain collapsed
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What is the effect of ascending bellows on airway pressure?
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Adds 2.5 cm H2O PEEP
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What machine has descending bellows?
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The NAD julian, but also has disconnect alarms based on ETCO2
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