44. 41歲女性,每日尿量4000~4500c.c.,其尿滲透壓(urine osmolality)為110 mosmol/L,下列何種診斷不必考慮? (A)水喝太多(polydipsia) (B)止痛劑腎病變(Analgesic nephropathy) (C)輸注葡萄糖(Glucose infusion) (D)腦下垂體手術後