Hi Mary,
I missed your thread when I was on earlier. I am so sorry to see what your sweet little grandson has gone through, poor baby. You will have lots of time now to question his ped card about the antibiotics. Andrew was given antibiotics prior to his tonsils & adenoids being removed, the card said that the mouth/throat is an especially dirty area and warranted the antibiotics. He was also premedicated for a lower GI scope, which again, is a dirty area. My Daniel (stable BAV) was not medicated for his tonsil/adenoid removal, but was given antibiotics for a laryngeal cyst removal when he was an infant. I can't figure it out, I just always call the cardiologist when they have to have something done! I hope little Charlie enjoyed his quick bath and heals quickly. Sending prayers.
Jen