Enough people have asked that I should post.
Lou's CT scan went fine. In fact, if he had not let himself get all worked up about it (which he really only lets happen with doctor's visits), and stopped and thought about it, he'd have realized it wasn't going to be invasive.
See, the last time he had a CT scan done, it was when he had kidney stones. He actually passed the stone, but they did the scan to make sure there was no damage done. They gave him an IV with the radioactive dye or whatever it is that would allow his guts to show up on the scan. And this wiped him out the next day, he felt all ill and such.
This time, it wasn't internal. It was on his upper arm, on the bone. No need for dye. So we went to the hospital for our 10:00 p.m. appointment, and got there early. Waited a bit (I brought a book), then went down to the next area with him. Waited some more. He went into the room alone, and had the scans done. Came back out, all fine, realized if he'd bothered to think or done some research he would have saved himself a lot of worry, then we went home.
I crashed, he was wired, so read for a bit. But see? No IV, no nothing. Just a scan.
By the way, the blood tests came back all normal, so no infection. We'll just have to see what the scan results say. He also says his arm doesn't hurt as much, which is good.
I just hope this isn't one of those things where they don't know what the problem is, and it goes away on its own.