Glomerular filtration rate in general small animal practice.

Quantitative evaluation of renal function in small animal general practice has remained essentially unchanged for decades. Glomerular filtration rate (GFR) is considered the gold standard for evaluating functional renal mass in veterinary medicine. For practical and financial reasons, GFR testing was previously available only at referral veterinary hospitals. Newer techniques for estimating GFR now allow the routine performance of this test in any small animal practice.