Hi Kerrianne, My Manolo has MVD and the Protein C test is what you really need. Most vet may not know about this so make a copy of Dr Tobias page about Protein C test. This test needs to be sent to their labs. Also what really helped me learn what to feed and not to feed was the Yahoo support group for liver shunts and MVD. Pls join and learn...Lots of Luck ....Lissette |