About: Dual-control modes of ventilation

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Dual-control modes of ventilation are auto-regulated pressure-controlled modes of mechanical ventilation with a user-selected tidal volume target. The ventilator adjusts the pressure limit of the next breath as necessary according to the previous breath's measured exhaled tidal volume. Peak airway pressure varies from breath to breath according to changes in the patient's airway resistance and lung compliance.

Attributes	Values
rdf:type	public transit system
rdfs:label	Dual-control modes of ventilation (en)
rdfs:comment	Dual-control modes of ventilation are auto-regulated pressure-controlled modes of mechanical ventilation with a user-selected tidal volume target. The ventilator adjusts the pressure limit of the next breath as necessary according to the previous breath's measured exhaled tidal volume. Peak airway pressure varies from breath to breath according to changes in the patient's airway resistance and lung compliance. (en)
foaf:depiction
dcterms:subject	Mechanical ventilation Respiratory therapy
Wikipage page ID	2270901 (xsd:integer)
Wikipage revision ID	1033191690 (xsd:integer)
Link from a Wikipage to another Wikipage	Mechanical ventilation Continuous mandatory ventilation Tidal volume Mechanical ventilation Airway resistance Flow waveform Pulmonary compliance Respiratory therapy Modes of mechanical ventilation Pressure control Controlled mandatory ventilation dbr:Inspiratory_time
sameAs	Dual-control modes of ventilation Dual-control modes of ventilation Dual-control modes of ventilation
dbp:wikiPageUsesTemplate	dbt:Reflist dbt:Mechanical_ventilation
thumbnail	wiki-commons:Special:FilePath/Pressure_regulated_volume_control_graphic.jpg?width=300
has abstract	Dual-control modes of ventilation are auto-regulated pressure-controlled modes of mechanical ventilation with a user-selected tidal volume target. The ventilator adjusts the pressure limit of the next breath as necessary according to the previous breath's measured exhaled tidal volume. Peak airway pressure varies from breath to breath according to changes in the patient's airway resistance and lung compliance. The pressure waveform is square, and the flow waveform is decelerating. This mode is a form of continuous mandatory ventilation as a minimum number of passive breaths will be time-triggered, and patient-initiated breaths are time-cycled and regulated according to operator-set tidal volume. The first few breaths are delivered to the patient according to the ventilator manufacturer's particular algorithm for determining the patient's resistance and compliance. These are 'test breaths' that the ventilator can then use to calculate the optimal pressures for the next, regulated breaths. The pressure is constant during the set as with pressure-controlled CMV. The ventilator will use the exhaled tidal volume measured at the end of that breath's expiratory phase to calculate the pressure of the next breath. If the exhaled tidal volume is lower than the software threshold, the next breath will be delivered at a higher pressure, and if the exhaled tidal volume is higher than the software threshold, the next breath will be delivered at a lower pressure. The theory is to ensure that the lowest inspiratory pressure necessary to achieve the desired tidal volume is used. As a safety feature, the ventilator will not increase the pressure beyond a predetermined high pressure limit. This is usually tied to (but not the same as) the operator-set high pressure alarm setting. If the ventilator delivers a breath at this high pressure limit and is still unable to achieve the operator-desired exhaled tidal volume, an alarm will sound to warn the operator that the volume target cannot be met. (en)
gold:hypernym	Modes
prov:wasDerivedFrom	wikipedia-en:Dual-control_modes_of_ventilation?oldid=1033191690&ns=0
page length (characters) of wiki page	3521 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Dual-control_modes_of_ventilation
is Link from a Wikipage to another Wikipage of	Pressure-regulated volume control Pressure regulated volume control
is Wikipage redirect of	Pressure-regulated volume control Pressure regulated volume control
is foaf:primaryTopic of	wikipedia-en:Dual-control_modes_of_ventilation

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