Follow up to What Would You Do?

I order the scan.

Most people are reasonable, but inevitably you run into those who are not, like this mom who has in her head what is best for her child and is not the least bit interested in my opinion on the matter despite the fact that of the two of us I’m the one who’s the doctor for crying out loud.  I could take the time to continue to argue with her at the expense of all the other patients in the department, eventually boot her out of the ER, take a hit on our patient satisfaction surveys, have an unflattering letter about me sent to administration, or I could order the scan.  Easy.

Plus, you just never know in this business — while it’s exceedingly unlikely that this kid has any sort of serious head injury it’s not zero and if you happen to be wrong about the child that you refused to scan despite his mother pleading for one (with an unwitnessed fall and tender soft tissue swelling no less), well, you have no recourse and are going to get absolutely nailed in court or with a huge settlement. 

What is the risk of cancer from a CAT scan?  Nobody really knows the answer to that question — a lot of the data is extrapolated from atomic bomb survivors who were thought to receive equivalent amounts of radiation — but it looks as though for any given patient, even a child, it is minute.  I’m not excited about exposing anyone to radiation but for this single patient encounter it’s probably ok.  To scan every kid who bonked his head without any sort of selection process would be a problem.  

I thought it was interesting that most of the commenters were against scanning, but the two I know to be ER docs were both in favor of pulling the trigger on the CT.