hyperresonace and dullness over lung indicates... ANS✔✔ hyperresonance= air
dullness= fluid
decreasing the TV on ventilator will do what to co2? ANS✔✔ increase co2
The major effect of ARDS on lung tissue is ANS✔✔ Decreased compliance
Decreased compliance is related to alteration of lung endothelium and vascular tissue. Pathophysiologic changes in lung
vascular tissue and increased lung edema contribute to the decrease in compliance. The end result is stiffness of the
fluid-filled non-aerated airways. There is an increase in capillary permeability due to the release of cytokines and a
decrease in functional residual capacity due to pathophysiologic changes in the lung. The inflammatory process of ARDS
causes inactivation, destruction and decreased production of surfactant. This leads to increased surface tension at the
alveolar air-fluid interface, which causes microatelectasis.
Decreased surfactant
, Solution 2024/2025
Pepper
What is functional residual capacity? ANS✔✔ amount of air remaining in lungs after a normal tidal expiration
What are patients with emphysema at risk for? ANS✔✔ Risk of infection due to long term corticosteroid use
How long is spontaneous breathing trial ANS✔✔ 30 minutes
ARDS is characterized by what? ANS✔✔ An antecedent event, refractory hypoexmia, and tachypnea
ABG of acute respitartoeg failure ANS✔✔ Pao2 less than 60
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