Notes in 58 Inhalation Therapy and Mechanical Ventilation in the PACU & ICU

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Published	12/13/2023	{{c2::HeliOx}} is a lower {{c1::density}} gas mixture that improves airflow in patients with high airway resistance.
Published	12/13/2023	When does absorption atelectasis occur?{{c1::FiO2 > 80%}}
Published	12/13/2023	Positive pressure ventilation {{c1::increases::increases or decreases}} physiologic dead space.
Published	12/13/2023	Positive pressure ventilation {{c1::decreases::increases or decreases}} cardiac output.
Published	12/13/2023	In {{c2::volume}} control ventilation, the ventilator attempts to achieve a preset {{c1::tidal volume}} with variable {{c1::airway pressure}}.
Published	12/13/2023	The advantage of using SIMV over IMV is that is improve patient {{c1::comfort}} through {{c2::synchronization of mandatory breaths}}.
Published	12/13/2023	The advantage of PCV (pressure control ventilation) is a reduced risk of {{c1::baro}}trauma.
Published	12/13/2023	Assist-Control ventilation will produce a {{c1::fixed}} volume/pressure and {{c1::variable}} rate.
Published	12/13/2023	What is the normal (physiological) I:E ratio?{{c1::1:2 to 1:3}}
Published	12/13/2023	What is an IRV ventilator mode?{{c1::Inverse (I:E) ratio ventilation such that inspiratory time is greater than expiratory time.}}
Published	12/13/2023	High-frequency ventilation delivers Vt that are {{c1::bigger::greater or smaller}} than anatomic deadspace.
Published	12/13/2023	When weaning a patient off a ventilator, the {{c1::pressure support}} should be incrementally reduced.
Published	12/13/2023	How does positive pressure, such as CPAP, affect FRC?{{c1::Increased due to decreased atelectasis}}
Published	12/13/2023	PEEP is applied {{c1::at end-expiration}}, while CPAP is applied {{c2::continuously}}.
Published	12/13/2023	PEEP/CPAP will increase {{c1::FRC::lung volume}}.
Published	12/13/2023	Excessive {{c2::PEEP/CPAP}} increases dead space by compressing {{c1::alveolar capillaries}}.
Published	12/13/2023	What cheap, non-pharmacological intervention reduces the risk for postoperative atelectasis?{{c1::Incentive spirometry}}
Published	12/13/2023	How should the I:E ratio be adjusted for a patient with obstructive lung disease?{{c1::Prolonged expiratory time (e.g. 1:3)}}
Published	12/13/2023	The main drawback of inverse I:E ratio ventilation (IRV) is {{c2::barotrauma}} from {{c1::auto-PEEP}}.
Published	12/13/2023	In {{c2::pressure}} control ventilation, the ventilator attempts to achieve a preset {{c1::airway pressure}} with variable {{c1::tidal volumes}}.&nbsp…
Published	12/13/2023	Which form of control ventilation produces better distribution of gases?{{c1::Pressure control ventilation}}
Published	12/13/2023	The disadvantage of pressure control ventilation is that changes in {{c1::lung compliance}} or {{c2::airway resistance}} may decrease the tidal volume…
Published	12/13/2023	What ventilator mode is this?{{c1::Volume control}}
Published	12/13/2023	What ventilator mode is this?{{c1::Pressure control}}
Published	12/13/2023	Controlled mandatory ventilation will produce a {{c1::fixed}} volume/pressure and {{c1::fixed}} rate.
Published	12/13/2023	On SIMV, {{c1::mandatory}} breaths are controlled, while {{c1::spontaneous}} breaths are pressure-supported.
Published	12/13/2023	The preferred ventilator mode for anesthesia with an LMA is {{c1::pressure support ventilation}}.
Published	12/13/2023	PEEP can cause {{c2::hypotension}} by increasing the {{c1::intrathoracic}} pressure and reducing venous return.
Published	12/13/2023	What ventilator mode provides differing inspiratory positive airway pressure and expiratory positive airway pressure? {{c1::BiPAP}}
Published	12/13/2023	Abrupt increases in {{c2::peak inspiratory pressures}} are strongly suggestive of {{c3::pneumothorax}}.
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