Dog won't eat, has high white blood count and low red blood count

My four year old lab mix hardly eats, has lost a lot of weight, and is beginning to get weak.  This has been going on for a few weeks.  She has a very high white blood count and a low red blood count.  She has been hospitalized for 3 days to receive fluids.  The vet suspects an auto-immune disorder and has prescribed high levels of Prednisone for the next two weeks.  It has been three days since then and she still will only eat a few bites a day and is not gaining any strength.  Is there anything else that this could be?  She was also treated for whip worms during this time, but the vet does not think these are related.

[Dr. Carol Osborne, DVM]

If you are able to post the results of your dogs blood and urine tests this would help me to offer relevant suggestions to help your dog which I am glad to do. Perhaps you might also consider getting a second opinion from a veterinary internal medicine specialist.
Dr Carol Osborne, DVM