My senior cat is vomiting. What's causing her high BUN and bad breath?

Question

My 15 yr old female cat is vomiting regularly. Treating with Rantac(Ranitidine) and Zofer(Ondansetron) stabilizes her for few days; then again the problem start. Blood report shows higher value of BUN (48 mg/dl) and Bilirubin (0.5 mg/dl) and lower value of Albumin (2.1 mg/dl). CBC seems to be normal. Body temperature sometime rises a bit after the vomit. The breath consist a bad oder sometime. What should be the line of treatment? Is this problems recoverable? Blood report attached. Pet's info: Cat | Mixed Breed | Female | spayed | 14 years and 4 months old | 6 lbs

Lindsey Edwards MVB, BSc, IVCA · Accepted Answer

Elevated BUN (uraemia) in itself is associated with nausea and vomiting and the underlying cause should be investigated. Dehydration as a result of vomiting, intestinal bleeding, obstructive bladder stones, fever, diabetes and kidney disease can all contribute - a thorough urine analysis would be recommended. Fluid therapy would be advised as soon as a urine sample has been obtained in order to try and reduce levels but urine production must be monitored closely to prevent overhydration if kidneys are not able to function well

My senior cat is vomiting. What's causing her high BUN and bad breath?

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