What are the effects of dehydration to gfr?

Dehydration leads to a reduction in blood volume, which can subsequently decrease renal perfusion pressure. This drop in pressure can reduce the glomerular filtration rate (GFR), impairing the kidneys' ability to filter blood effectively. Consequently, prolonged dehydration can lead to kidney damage and decreased waste elimination. Maintaining hydration is essential for optimal kidney function and GFR.