Ventilator mode basics, sedation scale use, and ventilator-associated pneumonia prevention bundle concepts for the ICU nurse.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What does "tidal volume" refer to in mechanical ventilation?
Show answer
The volume of air delivered in one breath.- What does PEEP stand for?
Show answer
Positive End-Expiratory Pressure.- What is the main purpose of PEEP?
Show answer
To keep alveoli open at the end of exhalation and improve oxygenation.- In Assist-Control (AC) mode, what happens when the patient initiates a breath?
Show answer
The ventilator delivers a full preset tidal volume or pressure.- What triggers a mandatory breath in Assist-Control mode if the patient does not initiate one?
Show answer
The set backup respiratory rate.- What does SIMV stand for?
Show answer
Synchronized Intermittent Mandatory Ventilation.- How does SIMV differ from Assist-Control for breaths above the set rate?
Show answer
Extra breaths above the set rate are patient-driven and not fully supported to the set tidal volume.- What is Pressure Support Ventilation (PSV)?
Show answer
A mode that assists spontaneous breaths with a preset level of pressure, without a set rate or volume.- In pure Pressure Support mode, who initiates every breath?
Show answer
The patient.- What does FiO2 stand for?
Show answer
Fraction of Inspired Oxygen.- What does plateau pressure measure?
Show answer
The pressure applied to the alveoli during an inspiratory pause.- What plateau pressure level is generally considered a threshold for lung injury risk?
Show answer
Above 30 cmH2O.- What is auto-PEEP?
Show answer
Trapped air pressure in the lungs from incomplete exhalation before the next breath.- What does the I:E ratio describe?
Show answer
The ratio of inspiratory time to expiratory time in a breath cycle.- What is a typical normal I:E ratio?
Show answer
About 1:2.
FlashKeepers