Term
Transrespiratory Pressure |
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Definition
The pressure difference between airway and body surface |
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Term
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Definition
| The ratio of pressure change to volume change |
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Term
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Definition
| The ratio of pressure changeto flow change |
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Term
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Definition
| The part of the ventilatory cycle from the beginning of expratory flow to the beginning of inspiratory flow |
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Term
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Definition
| The variable that the ventilator manipulates to cause inspiration |
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Term
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Definition
| A control scheme in which the output of a system is determined by the initial setting of the controller with no corrections made to accomadate disturbances in the output caused by external factors |
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Term
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Definition
| A control scheme in which the actual output of a system is measured and compared with the desired output |
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Term
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Definition
| To set a maximum value for pressure, volume, or flow during mechanically supported inspiration OR the preset maximum value for pressure, volume or flow during an assisted inspiration |
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Term
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Definition
| The time during the inspiratory phase when flow is being delivered |
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Term
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Definition
| The duration of the inspiratory phase |
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Term
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Definition
| The duration of the expiratory phase |
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Term
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Definition
| A variable that is measured and used to initiate some phase of the ventilatory cycle |
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Term
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Definition
| The part of the ventilatory cycle from the beginning of inspiratory flow to the beginning of expiratory flow |
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Term
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Definition
| The time between the end of inspiratory flow and the beginning of expiration |
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Term
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Definition
| The duration of the delivery of gas under positive pressure during inspiration until a cycle criterion is met |
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Term
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Definition
| The variable used by the ventilator control circuit to end inspiration |
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Term
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Definition
| The time during which expiratory flow occurs |
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Term
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Definition
| The time during the expiratory phase when no flow is occuring - the point at which airway & alveolar pressures are equal |
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Term
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Definition
| The magnitude of a phase variable |
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Term
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Definition
| A breath that is initiated and terminated by the patient rather than by a mechanical ventilatory drive |
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Term
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Definition
| A mechanical breath that is initiated and terminated by the ventilator rather than by the patient's ventilatory drive |
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Term
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Definition
| The vntilator subsystem responsible for controlling the drive mechanism and/or the output control valves |
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Term
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Definition
| A device whose internal volume can be changed to increase the pressure of the gas it contains |
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Term
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Definition
| A device external to the ventilator used to supply a pneumatic source power |
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Term
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Definition
| A device inside the ventilator used to convert either pneumatic of electric source power into inspiratory pressure |
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Term
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Definition
| The baseline transrespiratory pressure that exists at the end of the expiratory time |
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Term
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Definition
| Any condition or occurrence that triggers an alarm and requires clinician awareness or action |
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