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NUR 431 final – airway exam questions and answers
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NUR 431 final – airway exam questions and answers
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NUR 431 final – airway exam questionsand answers
PEEP - Answer-positive end expiratory pressure - left over positive pressure at the end
of inspiration to keep lungs inflated and alveoli open
if this is too high can lead to barotrauma
ventilator modes - Answer-assist control
SIMV
CPAP
assist control - Answer-provides full ventilatory support, allows for spontaneous initiation
of mechanical breath
SIMV - Answer-synchronized intermittent mandatory ventilation
provides partial ventilatory support, allows for spontaneous breathing
ventilator gives controlled breaths at a set rate but if pt tried to take an extra breath it
allows them to do it
small amount of pressure support is added to this mode to give small amount of CPAP
to overcome dead space associated with tube
CPAP - Answer-continuous positive airway pressure
AKA "spontaneous"
pt initiates breaths - but there is fail-safe rate in the case pt goes apneic for more than
30 seconds
used for weaning
ventilator settings - Answer-pressure control
volume control
low pressure/PEEP ventilator alarm - Answer-leak in system
circuit disconnect
high pressure ventilator alarm - Answer-some obstruction in circuit
pt could be biting it, kink in tubing, obstruction, pneumothorax
high frequency ventilatory alarm - Answer-high respiratory rate
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