Beginning of Essay
Of the diagnostic methods available to veterinarians, the clinical chemistry test has developed into a valuable aid for localizing pathologic conditions. This test is actually a collection of specially selected individual tests. With just a small amount of whol ....

Middle of Essay
.... the blood, it is readily removed through the kidneys and excreted in the urine. Any disease or condition that reduces glomerular filtration or increases protein catabolism results in elevated BUN levels. Creatinine is another indicator of kidney function. Creatinine is a waste product derived from creatine. It is freely filtered by the glomerulus and blood levels are useful for estimating glomerular filtration rate. Muscle tissue contains phosphocreatinine which is converted to creatinine by a nonenzymatic process. This spontaneous degradation occurs at a rather consistent rate (Merck, 1991). Causes of increases of both BUN and crea ....