尿路结石形成的物质基础是（）
A.腹肌无力
B.尿路感染
C.盆底肌松弛
D.高铁尿症
E.高磷尿症
参考答案：E
A 2-month-old neonate with diarrhea and vomiting has been receiving IV fluids for the past 24 hours. The specific gravity of the neonate’s urine is 1.012. What should the nurse do next
A. Check the neonate’s blood pressure.B. Check the specific gravity again as soon as possible.C. Notify the physician.D. Continue the ordered IV flow rat
心绞痛急性发作时，硝酸甘油常用的给药方法是（）
A.口服
B.气雾吸入
C.舌下含化
D.皮下注射
E.静脉滴注
