Hi! I do PD peds home care, but never did adult M-S. You should have case specific orientation that will cover your skills. Know how to feel comfortable saying to your supervisor- I need more orientation with this kid, I don't feel comfortable in that house, etc. They should accommodate. Some nurses are better fits with some cases and not others, that's OK. Your first cases should be relatively stable. Most skills are easy and infrequent. It's the "other stuff" that keeps us busy in pvt duty. The whole shift is one long assessment, maybe resp, maybe neuro, with subtle interventions. Then, here and there, a med, a TF, a seizure, etc. I do a lot of psycho social things with my cases, too. Help with homework, play, introduce new speech or signing, deal with sensory integration, try to include "my" kid with the other kids at recess, anything that makes "my" kid's life happier and easier!
You're a nurse, OT, PT, ST, teacher, nanny, etc! But never, never a parent! You do care for the whole family- deal with siblings who need an attitude adjustment, moms who want you to be their best friend (my advice, don't) and moms who cringe when they see a new nurse (what's THIS one going to mess up?) These families have a lot of stress and they need support. They know how the vent works, they know the pathophys of metabolic disease better than you ever will. They just want to know how to deal with the kid's grandma insisting he try to eat jello when he can't.
Most common skills- vent/trach; Mic-key buttons: venting, meds, flush, bolus and pump feeds, check balloons, change button, site care; pulse ox'y; AED use; applying braces; percussion/drainage; giving baths (wow, remember that

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Resources? I like: "Mosby's Ped. Nsg. Reference" Betz, Sowden; a drug book; a sign dictionary; Exceptional Parent magazine; Quest magazine (published by MDA, very good general disabilities info)
http://www.mdausa.org/publications/Quest/q-curr.cfm Try to "hang out" for as many types therapy sessions as you can (but beware!! that's usually your best break time!) Sensory- "The Out of Sync Child" and "the Out of Sync Child Has Fun" Carol Kranowitz (my library had these)