If someone is in such a severe condition that they need IV fluids, it is ASUR to ask a shilah — you give them the fluids! Pikuach nefesh trumps Yom Kippur! By seeking out a rabbi to ask a shilah you are further endangering the life of a Jew!!!!
This YK I saw two doctors order a woman who was faint to drink water. A rabbi oversaw the entire thing and did not interfere.