Earlier quoted context omitted.
I was being prepped for wrist/arm surgery years back and the anesthesiologist got a bit flummoxed and muttere, “huh, that’s strange… let’s get an ultrasound” while trying to administer a nerve block on my arm. I asked what and they ”oh, it’s nothing to worry about, but your nerve isn’t where it is supposed to be…”, and then knocked me out before I could ask anything else.
That’s why we use ultrasound on practically every block we do today.
IIRC, ultrasound is top of that payscale..?