Which organ can show signs of abnormal filtration indicating glomerular dysfunction?

The kidney is the organ responsible for filtration in the body, specifically through the structures known as glomeruli. These glomeruli are tiny blood vessels where the first step of urine production occurs. When glomerular function is compromised, it leads to changes in the filtration process, which can result in abnormal levels of various substances in the blood or urine, such as protein (proteinuria) or blood (hematuria).

Signs of glomerular dysfunction may manifest in various laboratory tests, showing decreased filtration rates and changes that indicate an inability to filter waste products effectively. Other organs listed do not primarily function in the filtration of blood and lack the specific structures to indicate glomerular pathology. Thus, the kidney is distinctly associated with glomerular filtration and its dysfunction.