Re: pain med...
I push the fentanyl into the IV line with the IVF at the usual drip rate. It goes in slowly enough, IMHO. If the pt has a saline lock, I mix it with sterile NS and slow push then flush. The usual order is 50 -- 100 mcgs IVP Q 1 hour x 3 maximum. Moms usually start asking for it around 2 -- 4 cm; I know they'll eventually want an epidural when they ask this early, especially the nullips. If in transition fentanyl doesn't do squat.
I worked one hospital as a traveler where they regularly used fentanyl PCAs, with 500 mcgs of fentanyl in the pump. 25 mcgs per dose, 8 min lockout, I think, forget the maximum lockout. I'm not kidding. My eyes popped out when I saw that. Many of their pts were tiny Oaxacan women who would push, push, push those PCA buttons. I remember one nurse's pt OD'd on the stuff; her respirations dropped very low, she was unresponsive, and they gave her narcan. I had another tiny Oaxacan woman use up the ENTIRE CASSETTE. She was drugged out but the staff didn't think anything of it. She used it up before her labor was over with, then as it wore off it was like she woke up. Miraculously the baby wasn't affected -- I think it had worn off by then.
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