BUN stands for blood urea nitrogen, a breakdown product from protein. This would be eliminated from the blood by the kidneys, and is thus one of the markers of kidney function. The other significant kidney marker usually considered is creatinine, which is actually more indicitave of kidney function. The BUN is influenced by the animal's diet, so a high protein diet is more likely to produce an elevated BUN. Createnine is a breakdown product of body protein, produced at a fairly constant rate, and thus less influenced by outside changes. If the createnine is high, it means the kidney is not keeping up with eliminating it, which means reduced kidney function. So ask your vet where the createnine stands.

[ Reply To This Message ] [ Subscribe to this Thread ] [ Show Entire Thread ]