The infectious disease Dr called tonight with word that pseudomonas grew in KT's surgical culture, so they took her off the ertapenem (once a day) and changed her to cefepime (twice a day). Not sure if that means MRSA is gone, or if it just hasn't had time to grow yet.
Katie has felt pretty good today, comparatively, with decreased swelling and redness. I got her a promise ring today, since I had forgotten to do it on her 16th birthday.
Your prayers are definitely helping!