I currently work as a nurse tech in OB. They only let you be a NT if you are going into your final year of nursing school here. I work with an RN and together we have anywhere from 5-8 postpartum couplets (so 10-16 patients). Our hospital is rooming-in. I can do assessments on moms and babies, PKU, baby weights, hearing tests on babies, teaching, answer call lights, help with breastfeeding, and the list goes on. At our hospital the NT do strictly postpartum care. The only thing I am not allowed to do for legal reasons is give medications.
On our unit, we have Unit Assistants that set up the tables for delivery, scrub in for c-sections, etc, clean machines, stock rooms.