题目【单选题】护士准备按医嘱给患者注射西地兰0.1mg,西地兰针剂的剂型是0.4mg/2ml。护士应该注射的毫升数是A. 0.2mLB. 0.3mLC. 0.4mLD. 0.5mL【单选题】护士准备按医嘱给患者注射西地兰0.1mg,西地兰针剂的剂型是0.4mg/2ml。护士应该注射的毫升数是A. 0.2mLB. 0.3mLC. 0.4mLD. 0.5mL题目解答答案D. 0.5mL