22.在慢性阻塞性肺病(chronic obstructive pulmonary disease,COPD)患者,當第一秒用力吐氣容積(forced expiratory volume in one second,FEV1)下降到多少時,容易出現血液二氧化碳分壓(PaCO2)過高的現象?
(A)< 2.5 L
(B)< 2.5 L/min
(C)< 1 L
(D)< 1 L/min
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統計: A(60), B(87), C(245), D(65), E(0) #2743952
統計: A(60), B(87), C(245), D(65), E(0) #2743952