Something that came out a while back and I forgot to put in here -- Jonathan Evison's  Revised Fundamentals of Caregiving.  A man whose life has come completely apart takes a night course and becomes a home health care worker, for a teenage boy with MD. They forge a strong relationship and he ends up taking the kid on a road trip to see his estranged father. There's a lot more to it but this is a book everyone should read if they get a chance - it's very, very good.