Again, I'm not talking about changing anything, except who performs it. HN Timmy would do the same thing CFLs do now, enter it in PRIMS, etc; he'd just be trained to do the calipers or some other method that seems to fall in the "more accurate but easier to fuck up" category, and do it enough that he's proficient. In theory. And also again, I don't think having a medical-type person perform a procedure makes it medically sacrosanct.
Hell, we already get our straight-up medical info splashed all over in public. You need an anthrax shot, you're Class 3 dental, etc etc.