Mother-Baby is Post Partum, only w/newborn care....basically it is what we call "couplet care". At least, that's what it is where I am, in all the major hospitals here. Mother Baby is where the mom goes after she delivers, and is "recovered".The mom and baby are transferred from L&D together and they should both be stable. Mother Baby also gets the c-section moms, after recovery. Typical couplet care, you have 4 to 5 couplets per shift. It can be very busy, as you are assessing, teaching, assisting w/breastfdg, prepping for discharge. And most stable vag deliveries go home 24 hrs after delivery, so things can move pretty fast. Most of these moms are fine, some need tons of teaching, though, especially if this is 1st baby, or they're a teen or very young mom, if social problems exist, etc.
As for your being able to run IV's etc, that is gonna depend on your state and your hospital, some LPN's can get IV certified. Most
PP moms do not have IV's with the exception of the c-sec moms for the 1st 12-24 hrs post surgery.
It's important to know that mother-baby is not labor&delivery, but it is a good place to start, see if you like the maternal child area, etc