Gce Model Questions Vol1 2021 Biology Question 15

Practice objective / multiple choice question 15 from the 2021 Gce Model Questions Vol1 Biology examination.

Gce Model Questions Vol1 2021 Biology Objective / Multiple Choice Medium Difficulty
Question 15 GCE_MODEL_QUESTIONS_VOL1 • 2021 • BIOLOGY • objective

A subject receives an inulin infusion that yields a steady plasma inulin concentration of \(0.12\ \text{mg ml}^{-1}\). Over a 2‑minute collection, \(48\ \text{mg}\) of inulin are recovered in \(120\ \text{ml}\) of urine. (a) Calculate the glomerular filtration rate (GFR) in ml min\(^{-1}\). (b) The plasma creatinine concentration is \(0.009\ \text{mg ml}^{-1}\) and the urine creatinine concentration is \(0.036\ \text{mg ml}^{-1}\). Estimate the creatinine clearance and state whether it over‑ or under‑estimates the GFR. Give both clearances to one decimal place.

Answer Options

Correct Answer A. GFR = 200.0 ml min⁻¹; creatinine clearance = 240.0 ml min⁻¹ (overestimates GFR)
B. GFR = 200.0 ml min⁻¹; creatinine clearance = 240.0 ml min⁻¹ (underestimates GFR)
C. GFR = 180.0 ml min⁻¹; creatinine clearance = 240.0 ml min⁻¹ (overestimates GFR)
D. GFR = 200.0 ml min⁻¹; creatinine clearance = 210.0 ml min⁻¹ (underestimates GFR)
Correct Answer
A
Correct Option:
GFR = 200.0 ml min⁻¹; creatinine clearance = 240.0 ml min⁻¹ (overestimates GFR)

About This Question

This is Gce Model Questions Vol1 2021 Biology Question 15. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Biology examination.

Difficulty level: Medium .

View More Gce Model Questions Vol1 2021 Biology Questions More Gce Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support