Roxy's first BAT was pre 43 and post 100.9
She really has such minimal symptoms: just some blahness to her
We went to a Internal Medicine Specialist. Did a full blood panel, urinanalysis, coagulation test and we did do a u/s (which showed a normal size and normal shaped liver). Roxy was already spayed at the time and also had been thru 2 LP surgeries and 1 dental plus her spay, I figured that was enough for her little body, plus they wanted about $3000 for the liver biopsy.
In the end, after everything was normal (except the BAT) her Vet and the Specialist are leaning towards MVD.
Anyway, she is doing well on a special diet and supplements