With all this negative talk about livershunt.. I do want to say something positive.. If he is diagnosed with livershunt its not a death sentance, this is fixable with surgery.
If you want to learn more about LS and speak with others who have dogs who had LS or dogs with MVD (microvascular dysplasia, many shunts inside the liver, which isnt fixable but can be controlled with proper diet and meds)
http://tech.groups.yahoo.com/group/L...d_MVD_Support/
I belong to this group and dont have any dogs with liver problems, Im just there to learn and while in the process met a group of wonderful people