As Nancy said. what are the phos levels? The urine SG shows a lack of concentration and that is usually the first thing to go in renal disease. However some dogs drink enough to create dilute urine. I was concerned about a pup I had once urinating a ton and drinking a lot. So I tested her and kept her with me at work without water and in 12 hours her urine was significantly concentrated. Telling me she was fine, just a big drinker.
The final BUN you reported 43 is likely a significant elevation. But a lot depends on the phos levels. Renal diets are lower in protein but have adequate protein for most biological needs. Excess protein becomes BUN, so less excess protein means less BUN that needs to be excreted. But renal diets do not slow progress of the disease. Controlling phos levels and many other items (ie calicitrol, blood pressure, excessive loss of protein in the urine) in chronic renal insufficiency can slow the progress of the disease. Most renal diets are also decreased in Phos level and enhanced in Potassium which renal animals tend to waste.
Of course other problems needs to be ruled out but my comments are based on renal disease. Talk to your vet about the topics I mentioned and if you are not comfortable ask for a referral to a internal medicine specialist.
Best of luck
The final BUN you reported 43 is likely a significant elevation. But a lot depends on the phos levels. Renal diets are lower in protein but have adequate protein for most biological needs. Excess protein becomes BUN, so less excess protein means less BUN that needs to be excreted. But renal diets do not slow progress of the disease. Controlling phos levels and many other items (ie calicitrol, blood pressure, excessive loss of protein in the urine) in chronic renal insufficiency can slow the progress of the disease. Most renal diets are also decreased in Phos level and enhanced in Potassium which renal animals tend to waste.
Of course other problems needs to be ruled out but my comments are based on renal disease. Talk to your vet about the topics I mentioned and if you are not comfortable ask for a referral to a internal medicine specialist.
Best of luck
