The clearance of what substance, which is not produced in the body but must be injected, provides a measure of glomerular filtration rate?
A) inulin
B) glucose
C) creatinine
D) PAH
E) urea

Question

Quizplus · Accepted Answer

Inulin clearance is used to measure glomerular filtration rate (GFR) because it is freely filtered at the glomerulus and is neither reabsorbed nor secreted by the renal tubules, making it an ideal marker for GFR. It is not produced in the body and must be injected for this measurement.

The Clearance of What Substance, Which Is Not Produced in the Body