Ijmb Model Questions Vol1 2021 Biology Question 6

Practice essay / theory question 6 from the 2021 Ijmb Model Questions Vol1 Biology examination. This question covers Excretion .

Ijmb Model Questions Vol1 2021 Biology Essay / Theory

Topic: Excretion

Question 6 IJMB_MODEL_QUESTIONS_VOL1 • 2021 • BIOLOGY • essay

A medical student is analysing renal function in a 30‑year‑old male using creatinine clearance as an estimate of glomerular filtration rate (GFR).

Question Parts

( a )

Calculate the creatinine clearance in mL min⁻¹. Show all unit conversions used.

( b )

Compare the calculated clearance with the normal adult GFR range (90–120 mL min⁻¹) and state whether the kidney function is normal, reduced, or increased.

( c )

The subject becomes dehydrated, leading to a 30 % reduction in urine flow rate while plasma and urine creatinine concentrations remain unchanged. Predict qualitatively how the creatinine clearance will change and explain the physiological basis for this change.

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About This Question

This is Ijmb Model Questions Vol1 2021 Biology Question 6. It is one of the essay questions from the 2021 Ijmb Model Questions Vol1 Biology examination.

The question covers Excretion .

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