患者男性，42岁，间歇性上腹痛3年，有嗳气、反酸、食欲不振，冬春季节较常发作。近3天来腹痛加剧，且突然呕血400m1。

为确诊原因，应首选

A．X线钡餐检查　　

B．超声检查　　

C．大便隐m试验　　

D．纤维内镜检查　　

E．胃液分析

The nurse-manager has noticed a sharp increase in the mediation errors with IV antibiotics over the last month. She discusses the situation with each nurse involved. What other action should she take（）

A. Document it on their evaluation.

B. Ask them to attend inservice training for administration of IV medications.

C. Report them to the supervisor.

D. Report the incidents to the hospital attorney.