Q. Dog weight loss in short space of time plus skin infection full bloodwork done by vet came back negative also shes a nine year old Shih Tzu
DR. CHRISTIE LONG, D.V.M., C.V.A.
A. With weight loss and normal blood work I'd recommend looking more in depth at the GI tract. The best way to get started is likely with an abdominal ultrasound, but x-rays with or without contrast material (i.e. Barium) may be helpful as well. I'd also recommend submitting a blood test called a GI panel (your vet can do this) to Texas A&M. They can look for some difficult to diagnose diseases that cause weight loss, such as chronic pancreatitis. Also, if the skin infection isn't healing well, it's probably time to culture the area and determine exactly what the "bug" is and the appropriate antibiotic to treat it.
A. Review the diet and amount fed with your veterinarian. Submit a stool sample to rule out intestinal parasites.