[143julz]

I lost a 14 yr old Yorkie to kidney failure. The number you are referring to as “34”, is that the BUN? With the med’s your baby was on for the vomiting and “runs” earlier could be enough to elevate the BUN. The BUN alone doesn’t necessarily point to kidney failure.
Has a full blood panel been done, if so, post the numbers b/c many on here have experience and will be able to help “dictate”.
My dog lived 5 yr with her BUN over 50 until the end it reached150. But her creatine (sp) level was also elevated, which detects “function”, the more blood info you can post, the more help should come your way.
Good luck to you, keep us posted.