The Urine Protein Creatinine Ratio (UPCR) test is a simple yet powerful diagnostic tool used to screen for and monitor proteinuria (excess protein in the urine), a key indicator of kidney damage or disease.It provides an efficient and more accurate estimate of 24-hour protein excretion from a single, random urine sample.
In a healthy individual, the kidneys filter the blood, retaining large proteins (like albumin) and allowing only trace amounts into the urine.Proteinuria—indicated by a high UPCR—signifies that the tiny filters in the kidneys (glomeruli) are damaged and have become "leaky."
