My baby had a prob w/ low blood sugar, too. They kept making me give her formula and it broke my heart. And then she had jaundice and they said she had to have formula to help make that better too! I was trying to give her as little as possible because I was scared to death of nipple confusion (and I couldn't get the hang of the SNS) and I remember one night the nurse brought her back from her tests and said proudly "we got her to drink a whole bottle in the nursery!"... I was SO mad! I broke down in tears.
Anyway... Just make a sign for your bassinet, that will really help. Then no one can say they didn't know.