PCCN RESPIRATORY REVIEW QUESTIONS AND VERIFIED ANSWERS

Normal adult P/F ratio (On RA)


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400 or greater




CPAP


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continuous positive airway pressure. Pt determines volume and rate, but
cont. pressure keeps airways open.




SIMV

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Synchronized intermittent mechanical ventilation. Theres a set VT and rate,
but all spontaneous breaths above the rate are at the pt's own VT.




How does PEEP affect surface tension and intrapulmonary shunt?


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It decreases surface tension and intrapulmonary shunt.




VATS


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video-assisted thoracic surgery




O2% for NC


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Less than 40%




O2% for nonrebreather mask


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, 80-100%




VILI


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Ventilator-Induced Lung Injury. Alveolar over-distention due to high peak
inflation volume (volutrauma) produces acute lung injury




P/F ratio


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P = PaO2
F = FiO2
P divided by F is the P/F ratio. It determines then ratio between oxygen
delivery and the actual arterial concentration of oxygen.




FEV1


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forced expiratory volume in 1 second




Normal PaO2 range (ABG)