In Amy's defense (not that she needs it), she had no way of knowing that you knew it wouldn't get rid of PA especially considering you said, <div class="FTQUOTE"><begin quote>cool...i'm up for anything that gets rid of the PA bug </end quote></div> So, I found her comment helpful because I haven't yet had time to read up on Aztreonam.
Also, I don't think Amy knows or pretends to know everything about CF but she is certainly one of our most educated.