試題詳解

58. 在 video-assisted thoracoscopic surgery (VATS) 中，已 one-lung ventilation (OLV) 約半小時後，發生 gradual desaturationwith SpO2 90%，下列處置何者錯誤？
(A) Ensure that FiO2 is 1.0, cardiac output is optimal
(B) Apply PEEP 5 cm H2O to ventilated lung, CPAP 1-2 cm H2O to nonventilated lung
(C) 不可用 recruitment maneuver to ventilated lung 來改善可能的肺擴張不全，它會造成 transient hypotension and further fall in PaO2
(D) 不需要立即要求暫停手術，恢復 two-lung ventilation
(E) Use mechanical restriction of blood flow to nonventilated lung