Why do you insist that it was a locum doctorWell then a locum shouldn't use it. That's the same as using a stamp with someone elses signature on it.
Was it a locum?
No, the doc in question is registered on the cervicalcheck.ie website at this surgery, so she is obviously well established there. It seems that she is covering some of the surgeries for the older partner at this surgery (the doc who's perscription pad she used).