So I took my grandma to the ER today to check for an infection. She's been crazy and not herself and honestly just been so confused. She has dementia. I keep Dipsticking her testing her UTI but it always comes up with negative. She was refusing food and water and pills the last two days so I finally had to take her in. (I couldn't yesterday as there was a huge snow storm). They did blood work, a urine sample which was extremely dark but still negative, and a chest x-ray. They said everything came back normal and sent her home. She's been screaming on top of her lung (something new) and seeing people who aren't there and saying they are beating her up. Still is refusing stuff and as a diabetic that's disturbing. Can a UTI be there if the dipping stick is negative? She's been so abusive the last two days and so angry. She was like this one other time before. I took her to the ER and it came back negative then when she got to this point she was a positive for an untreated UTI. I just need help! I'm losing it here.