The role of organic urine sediment analysis in the monitoring of renal diseases

Cytological analysis of urine sediment is an integral part of urine analysis and a useful, cost-effective diagnostic tool for all routine clinical examinations, which can sometimes be overlooked in veterinary practice. Proper handling and timely urine sample analysis are essential for valid microscopic analysis. Microscopic urinary sediment testing is usually carried out with stained or unstained specimen. A common urine may contain a small number of cells (erythrocytes and leukocytes, epithelial cells) of several crystals, spermatozoids (male animals). In contrast, a large number of cells or casts, the presence of unusual types of crystals, neoplastic cells, parasites, and microorganisms include abnormal findings, requiring a specialized diagnostic approach. Correct identification of organic components of the urinary sediment are crucial for accurate and timely diagnosis of kidney disorders. Laboratory experts should be trained to properly identify and classify organic components of the urinary tract.