What effect would upper airway obstruction have on ventilation-perfusion ratio, PAO₂ and PACO₂ ? A) The V/Q ratio and PACO₂ will decrease and PAO₂ will increase. B) The V/Q ratio and PAO₂ will decrease and PACO₂ will increase. C) The V/Q ratio and PAO₂ will increase and PACO₂ will decrease. D) The V/Q ratio and PACO₂ will increase and PAO₂ will decrease.

Question

Quizplus · Accepted Answer

Upper airway obstruction reduces ventilation, leading to a decreased V/Q ratio. This results in lower PAO2 and higher PACO2 due to impaired gas exchange.

What Effect Would Upper Airway Obstruction Have on Ventilation-Perfusion Ratio