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Multiple Choice

Which element is commonly described as transitional cells in urine findings?

Transitional cells refer to the urothelial cells that line the urinary tract (renal pelvis, ureters, bladder, and proximal urethra). In a urine sample, these cells are described as transitional cells because they come from that lining. They are distinct from red blood cells or white blood cells, which indicate blood or infection, and from squamous epithelial cells, which usually come from contamination at the distal urethra or vagina. So, the element commonly described as transitional cells in urine findings is the urothelial (transitional) cells themselves.

Transitional cells refer to the urothelial cells that line the urinary tract (renal pelvis, ureters, bladder, and proximal urethra). In a urine sample, these cells are described as transitional cells because they come from that lining. They are distinct from red blood cells or white blood cells, which indicate blood or infection, and from squamous epithelial cells, which usually come from contamination at the distal urethra or vagina. So, the element commonly described as transitional cells in urine findings is the urothelial (transitional) cells themselves.