試題詳解

57.關於wedge pressure的測量，下列敘述何者錯誤？
(A)當pulmonary capillary pressure大於alveolar pressure時，wedge pressure可以反應LA pressure
(B)當pulmonary capillary pressure小於alveolar pressure時，wedge pressure可以反應alveolar pressure
(C)PA catheter tip應放置在upper lung region，因為pulmonary capillary pressure會大於alveolar pressure
(D)當ballon inflation時，wedge pressure＝pulmonary capillary pressure＝LA pressure