I work in a very parent friendly unit that doesn't impose much on parents. Sometimes a little too lax but.....
If a baby needs that Hep B within a certain # of hours for whatever reason, I truly feel this needs to be addressed by the OB and the peds doctor and really should've already been done long before they reach my floor. I myself will not give "advice" on immunizations or medications to parents, instead I will encourage them to read the info provided to them on check in and call their peds doc for more questions if necessary.
For those with no PNC, our peds doc rounds quickly on them cause of the GBS and various other issues that can pop up rather quickly in these little buggers.
I'm really good at shifting this back onto the parents. They've had 9 months to make these decisions and to talk to their peds doctor about their decisions and choices. Of course, if they've had no PCN, then I encourage them to talk to the peds doc when he rounds.
We have a consent for everything under the sun and I really believe that when a parent signs an INFORMED consent that they are INFORMED of what they are signing. If that means waiting for the peds doc to round or for the 3-5 day check up, then I'm good with that too.
For me I can see the lawsuit now.....Jimmy's nurse told me I had to have the Hep shot within 12 hours, so I did it but I didn't understand the risks, now Jimmy is Autistic and it's all her fault because she made me do it.
I would question the 12 hour "rule". Chances are its more of a paper trail and continuity thing that an actual guideline set forth by anyone other than a paper pusher.