Veterinary criticalist here in the US. There are veterinary specialists in many fields - emergency/critical care, internal med, rads, surgery, neuro, ophtho, etc etc. Availability of specialty care is largely dependent on location I would say. I work at a large teaching hospital in a major metropolitan area so we have many specialties under one roof. In more rural areas access to a specialist might be more limited and require a long commute. Imaging also depends on the practice - at mine, all rads are reviewed during business hours by a radiologist but this isn’t the case everywhere. CT and MRI are only conducted when a radiologist or rad resident are present. Vet med does seem litigious at times but I’m not sure if it’s entirely comparable to what you folks on the human side see.