关于应激性溃疡的临床特点，下列不正确的是（）

A.常见诱因是严重烧伤、颅脑损伤、大手术或全身感染

B.表现为急性弥漫性胃黏膜糜烂、出血或溃疡

C.严重时可发生大出血或穿孔

D.胃镜检查可证明病变

E.一经诊断，应首先考虑外科手术治疗

An elderly client's lithium level is 1.4 mEq/L. She complains of diarrhea, tremors, and nausea. The nurse's first action is to

A．hold the lithium (Lithobid) and notify the physician.

B．reassure the client that these are normal adverse effects.

C．administer another lithium dose.

D．discontinue the lithium.