mechanical ventilation Flashcards
how much O2 is in the air
21%
what are the 3 ventilator parameters that you need to know
mode of ventilation
FiO2
PEEP
what are the 2 monitored parameters that you need to know
minute ventilation
respiratory rate
what is defined as the pressure applied by the ventilator at the end of each breath
PEEP (positive end expiratory pressure)
what does PEEP prevent the airways from doing
collapsing
excessive PEERP may ____ cardiac output and impair systemic oxygen delivery
reduce ( because to much pressure )
3-5 cmH2O is considered what level of PEEP
low
5-15 cmH2O is considered what level of PEEP
moderate
> 15 cmH2O is considered what level of PEEP
high
the purpose of moderate peep is to treat refractory _____ in acute lung injury
Hypoxemia
what are the 3 traditional ventilation modes
assist control
synchronized intermittent mandatory ventilation + pressure support
pressure support
assist control is a ___ weaning mode
non
in assist control the rate and tidal volume are ____
pre set
with assist control the pateint can generate breaths by triggering ventilator (T/F)
true
Synchronized Intermittent Mandatory Ventilation (SIMV) is a non weaning mode (T/F)
false ( it is a weaning mode)