I know what you mean, as I had always learned that a "full-term" baby was born anywhere from 38-42 weeks. However, my ds was born at 36 weeks and 6 days, and he was considered "premature" by one day - LOL! a 7lb. 15oz preemie - LOL! Apparently 37 weeks is considered full term - or at least no longer "early"?
We had a hospital birth and he was required to do the carseat test - which is non-invasive so we didn't really mind, but he was probably one of the biggest babies to ever have to do that test. Our nurses tried to get him "out of it" but apparently the rules are the rules! (Argh - silly hospitals, sometimes!)