问题
单项选择题
Which of the following would the nurse do for a 4-year-old girl who has just had a lumbar puncture
A. Administer narcotic analgesic for insertion site pain.
B. Encourage the parents to hold the child.
C. Ensure the child lies flat for at least 8 hours.
D. Place a sandbag over the puncture site for 3 hours.
答案
参考答案：B
解析：After a lumbar puncture which is a traumatic procedure for a 4-year-old child, the child needs to be comforted by people she trusts. Thus, the nurse should encourage the parents to hold the child to provide the necessary support.
已知：①不对称烯烃与HBr加成反应时，一般是Br加在含氢较少的碳原子上，如：
不能发生催化氧化反应。