I would hold off on spaying Chewie until you figure out her BAT/liver situation. Ideally, liver function tests are done on every pet (and humans) before going under anesthesia because the liver is essential for filtering the anesthesia.
In a dog with a potential liver shunt, they might be able to combine the spay with exploratory surgery on the liver or taking a liver sample.
__________________ Kristin, Max and Teddy  |