Two substances that can probably be used to determine filtration fraction are -: (A) Insulin and mannitol, (B) Urea anddiodrast, (C) PAH and phenol red, (D) Inulin and PAH
Answer is D. Ans. is 'd' i.e., Inulin and PAH o GFR is measured by inulin and renal plasma flow is measured by PAH.