問題詳情

31.某成年患者被送至急診室,在呼吸空氣下,pH:7.08,PCO2:80 mm Hg,PO2:40 mm Hg,HCO3-:22,SaO2:75%,則arterial hypoxemia之機制為:
(A)Ventilation in excess of perfusion
(B)Perfusion in excess of ventilation
(C)Alveolar shunt
(D)Hypoventilation

參考答案

答案:D
難度:簡單0.714286
統計:A(1),B(4),C(2),D(25),E(0)

內容推薦

內容推薦