骨骼肌的兴奋—收缩耦联中起关键作用的离子是 ( )
A.K+B.Na+C.Mg2+D.Ca2+E.Cl-
参考答案:D
A client receiving morphine for long-term pain management develops tolerance. When the client asks the nurse what it means, which of the following should the nurse response
A. "Tolerance is an allergic reaction to a medication. "B. "Tolerance is an ability to take the same drug for extended periods of time. "C. "Tolerance is an increased response to a medication. "D. "Tolerance is a diminished response to a drug so that more is required to reach the same effect. "
血液的包装袋上应当标明的内容有()。
A.血站的名称及许可证号
B.献血编号或者条形码
C.血型、血液品种
D.储存条件