50. Therapeutic plasma concentrations of a passive fentanyl patch多於貼上皮膚後多久達成?
(A) ＜2 hours
(B) ＜4 hours
(C) 8 hours
(D) 12 hours
(E) 12-24 hours

1. 題目解析題目詢問的是被動型芬太...