NEW FCCN LEVEL 2 MECHANICAL
VENTILATION
ARDS NMB EXAM Q&A GRADED A+ TESTED
AND APPROVED!!!
respiratory rate -- ANSWER--minimum number of breaths per minute the vent
will ensure your pt takes
increase the rate to blow off CO2, decrease rate to retain
tidal volume -- ANSWER--amount of air that moves in and out of the lungs
during a breath. calculated based on predicted body weight (height and gender)
6mL/kg is ideal
minute ventilation -- ANSWER--tidal volume x respiratory rate
volume inspired during 1 minute
normal is 5-8L/min
,pressure support -- ANSWER---eases the work of breathing, helps to overcome
airway resistance of breathing through artificial airway
-cannot be used with AC or CMV
-CAN be used with SIMV
-Patient can take breaths between mandatory breaths
-used to wean from ventilator
peak airway pressure -- ANSWER--highest pressure recorded at the end of
inspiration
SIMV -- ANSWER--synchronized intermittent mandatory ventilation
mandatory breaths have a set tidal volume, pt initiated breaths have varying
tidal volume
initial mode for ventilation or weaning mode
disadvantage: increased work of breathing and can lead to pt/vent asynchrony
,AC/CMV -- ANSWER--Assist control or continuous mandatory ventilation
pt initiated or ventilator control breaths have set tidal volume
disadvantages: hyperventilation which may cause respiratory alkalosis or
hyperinflation, less comfortable for pt
SpO2 -- ANSWER--saturation of peripheral oxygen, obtained using pulse ox
90-100%
SpO2 90%=PaO2 60
PaO2 -- ANSWER--partial pressure of oxygen in arterial blood, obtained using
an ABG
80-100mmHG
, PaO2 60=SpO2 90%
PaCO2 -- ANSWER--35-45
respiratory acidosis -- ANSWER--low pH, high CO2
causes: CNS depression from drugs such as sedation, injury, or disease
breathe too slow, retaining CO2
respiratory alkalosis -- ANSWER--high pH, low CO2
causes: pain, fever, sepsis
breathe too fast, not retaining enough CO2
VENTILATION
ARDS NMB EXAM Q&A GRADED A+ TESTED
AND APPROVED!!!
respiratory rate -- ANSWER--minimum number of breaths per minute the vent
will ensure your pt takes
increase the rate to blow off CO2, decrease rate to retain
tidal volume -- ANSWER--amount of air that moves in and out of the lungs
during a breath. calculated based on predicted body weight (height and gender)
6mL/kg is ideal
minute ventilation -- ANSWER--tidal volume x respiratory rate
volume inspired during 1 minute
normal is 5-8L/min
,pressure support -- ANSWER---eases the work of breathing, helps to overcome
airway resistance of breathing through artificial airway
-cannot be used with AC or CMV
-CAN be used with SIMV
-Patient can take breaths between mandatory breaths
-used to wean from ventilator
peak airway pressure -- ANSWER--highest pressure recorded at the end of
inspiration
SIMV -- ANSWER--synchronized intermittent mandatory ventilation
mandatory breaths have a set tidal volume, pt initiated breaths have varying
tidal volume
initial mode for ventilation or weaning mode
disadvantage: increased work of breathing and can lead to pt/vent asynchrony
,AC/CMV -- ANSWER--Assist control or continuous mandatory ventilation
pt initiated or ventilator control breaths have set tidal volume
disadvantages: hyperventilation which may cause respiratory alkalosis or
hyperinflation, less comfortable for pt
SpO2 -- ANSWER--saturation of peripheral oxygen, obtained using pulse ox
90-100%
SpO2 90%=PaO2 60
PaO2 -- ANSWER--partial pressure of oxygen in arterial blood, obtained using
an ABG
80-100mmHG
, PaO2 60=SpO2 90%
PaCO2 -- ANSWER--35-45
respiratory acidosis -- ANSWER--low pH, high CO2
causes: CNS depression from drugs such as sedation, injury, or disease
breathe too slow, retaining CO2
respiratory alkalosis -- ANSWER--high pH, low CO2
causes: pain, fever, sepsis
breathe too fast, not retaining enough CO2
