單項(xiàng)選擇題

對某患者靜脈滴注利多卡因,已知:t=1.9h,V=100L,若要使穩(wěn)態(tài)血藥濃度達(dá)到3μg/ml,則K應(yīng)為()

A.109.4μg/h
B.109.4mg/h
C.822.5μg/h
D.822.5mg/h
E.36.5mg/h