Urgent Care for Rhino's Health Crisis

Hi, I’m trying to help raise money for my best friend Lena and her dog, Rhino. Rhino has not been doing too well and has been back and forth at the emergency vet the past few weeks. Rhino had low white blood cell count and high liver enzymes and have doubled since last week. At this time, the vet is not sure what is wrong with him but is thinking he may have Leptospirosis, a bacterial disease that can cause liver failure. The vet recommends keeping him overnight and starting IV fluids/meds, and as you can imagine, this is all extremely expensive. They could really use some help to cover the hospital costs for Rhino. Thank you so much in advance.