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Continuous Positive Airway Pressure (CPAP) Advantages -
ANSWER-Offers pt
psychological security of the ventilator being there. Can be
delivered thru mask.
Takes advantage of the ventilator alarm
systems
Continuous Positive Airway Pressure (CPAP) Disadvantages -
ANSWER-Not all
vents are equipped with this mode. Patient may sense
resistance when
breathing thru ventilator
tubing
BiLevel Positive Airway Pressure (BiPAP) Description -
ANSWER-2 preset pressures: Insp and exp. Must be able to
breathe spontaneously and maintain airway. Requires face or
nasal mask
BiLevel Positive Airway Pressure (BiPAP) Indications -
ANSWER-OSA, cardiogenic pulm edema (needs to be
hemodynamically stable), weaning from mechanical ventilation,
terminally ill resp fail, spinal cord inj, hypercapnic hypoxemic
failure
,BiLevel Positive Airway Pressure (BiPAP) Advantages -
ANSWER-Noninvasive. Increases FRC by recruiting collapsed
alveoli. May be able to avoid intubation which reduces LOS
BiLevel Positive Airway Pressure (BiPAP) Disadvantages -
ANSWER-Mask must fit well and slight leaks will result in blasts
of air into eyes. Mask may cause anx and agitation. Cant use on
someone who cannot protect their own airway (dec LOC)
humidified O2. Ventilator rate is set at lowest level that will
maintain ABGs and
set tidal vol is given regardless of the pts effort and position
in the resp cycle
Intermittent Mandatory Ventilation (IMV) Indications -
ANSWER-Pts who
temporarily need positive pressure ventilator support but are
expected to return
to spontaneous unassisted ventilation soon. Commonly used
during weaning
Intermittent Mandatory Ventilation (IMV) Advantages - ANSWER-
Allows pt to do
some of the breathing. Which having control can reduce anx.
Fewer ventilator
breaths mean lower intrathoracic pressure and less risk for
barotrauma and
, decreased CO. Lessens the need for sedation and paralysis
and Mean airway
pressures
Intermittent Mandatory Ventilation (IMV) Disadvantages -
ANSWER-Must set peak insp pressure limit to < 10 cm above
the pts peak insp pressure to prevent "stacked breaths"
(ventilator breath delivered on top of pt breath) which increases
risk for barotrauma. Danger if rate is set low and pts own RR
drops or stops
Positive End-Expiratory Pressure (PEEP) Description -
ANSWER-Maintains a
preset positive airway pressure during the expiratory
phase. Best PEEP:
increases PaO2 so that FiO2 can be decreased, Does not
reduce CO,
Minimizes pulm shunt, and decreases
airway resist
Positive End-Expiratory Pressure (PEEP) Indications -
ANSWER-To treat PaO2 < 60 mmHg when FiO2 is > 50 mmHg
by recruiting dysfunctional alveoli. Also used to increase
intrapulmonary pressure to decrease intrathoracic bleeding
(after cardiac surgery)
Positive End-Expiratory Pressure (PEEP) Advantages -
ANSWER-Improves