"我们ER里小孩做CT的不是没有啊。有的成人病人一天之内做两个CT,几个xray
的也很常见的啊"
This does not guarantee the radiation from the CT test would not cause
cancer later in your life. The decision of prescribing a CT test, or any
other test that has possible negative side effect, is based on a balanced
consideration: the benefit of detecting a serious on-going disease v. the
risk of developing some other disease as a result of the test.
ER doctors are usually not the best just because people going to ER can not
choose a doctor. For things like having a CT scan, you'd better get a second
opinion before doing it.
1 CT = 1000 Xray