Don't feel bad, many moms miss the UTI symtoms, especially when they can be attributed to teething or other things, I did too! My daughter had to have the VCUG and ultrasound as well because of her age. I was nervous even though I perform these same exams, except on adults! My daughter was a little older so it was a little rough because she was very aware but the staff at TCH were wonderful with her and very patient. I also requested that she be given medication to relax her because she is a very headstrong little one when she does not want to do something and I did not want to tramatize her for any future visits to the hospital if the occasion would arise. Her pedi prescribed it along with the orders for the exams. The ultrasound goes quickly 9if she is still which is hard for a little one) and the VCUG test is quick itself, just the preparing and that kind of thing takes longer. I won't go into detail if they already explained the test but they do this on young children on even just one UTI because they are looking to make sure that it is not a chronic condition where the urine is refluxing back into the kidneys. If it is, then they need to catch it early so it does not do damage over time. My neice had the VCUG and was positive for reflux so they put her on an antibiotic once a day for a year and at her next VCUG, she was fine. It seems like a major thing but if they catch it and treat it, it will be just fine in the long run. I hope this helps a little bit! I know it can be scary but once they explained why she must have it done after just one UTI, I was quickly on board, especially seeing patients with long term kidney disease that was untreated (I am talking over a life time, not a few days). She will do great and never even remember it!