Just out of curiosity, I was wondering why you are getting it done? Is she getting really bad symptoms or not responding to meds? Here pH probes are generally only done when medications don't work or if they are having problems like Failure to Thrive. Is she on medication? If so, please check if you can get it done still, because it will make the results invalid. They should be off all reflux medications including mylanta (and some even say panadol) for at least a week, so it doesn't alter the results.
She is not on any meds. The paed wants to do this test to see what kind of medication to give, either something like losec or zantac rather than trial and error. She was on mylanta but I've not given it to her in a few weeks, as I was giving her homeopathic meds, which weren't working. She had panadol on Friday afternoon, and her test is Monday morning. Is that bad? I had to give it to her, she was in so much pain. I don't remember the test lady mentioning anything about panadol when we were organising the test.