I just finished watching the first season, and this comment was what I came here to make. We started watching it while my brother was visiting my sister and me from Costa Rica. Both of them worked their lives in the same hospital (my sister her entire working life; my brother maybe 80% of his working life). They both were impressed with how true it felt. Minor things like the lack of masks (although I know it’s probably so the actors faces could be seen, but it also made poor Whittaker’s splatter issues more intense).
Loved it.