Vitamins yes, that’s not going to be a massive issue, your body takes what it needs from those bags of pabrinex so its something fairly safe…but depending on what fluids they’re giving her it could push her sodium lower or rehydrate her but not replace her potassium if she needs it….no one needs an IV outside of a hospital, if you can’t drink and rehydrate yourself and are bad enough to want IV fluids then you need to be having your bloods and ketones checked…you can have fluids with glucose/postassium/ magnesium replacement whatever you need, IV fluids are a medication and I don’t agree with them just randomly being given…..and yes all being well they did make her feel better