An alternative to administering inulin to determine the glomerular filtration rate is measuring the
A) creatinine clearance
B) level of serum creatinine
C) level of blood urea nitrogen
D) renal plasma flow
E) level of insulin

Question

Quizplus · Accepted Answer

Creatinine clearance is a widely used and more convenient alternative to administering inulin to determine the glomerular filtration rate. This method involves measuring the amount of creatinine in both the blood and urine over a certain period of time, and then calculating the clearance rate using a formula. This is a reliable indicator of renal function, as creatinine is produced and eliminated by the kidneys at a fairly constant rate. Serum creatinine levels and blood urea nitrogen levels can also be used to estimate renal function, but they are less accurate and can be affected by factors such as muscle mass and protein intake. Renal plasma flow and insulin levels are not directly related to glomerular filtration rate.

An Alternative to Administering Inulin to Determine the Glomerular Filtration