Physiology Glomerular Filtration, Renal Blood Flow, and Their Control b5cfd59b All of the following decrease the Glomerular filtration rate except - A Decreased plasma protein levels B Increased tubular hydrostatic pressure C Decreased effective filtration surface area D Decreased capillary hydrostatic pressure High-Yield Explanation Plasma protein binding of a substance decreases is glomerular filtration. Only unbound substances are filtered.