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Experimental Calculations of Renal Function (Part 1)

by Carlo Raj, MD
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    About the Lecture

    The lecture Experimental Calculations of Renal Function (Part 1) by Carlo Raj, MD is from the course Renal Diagnostics.


    Included Quiz Questions

    1. Inulin – freely filtered, neither secreted nor reabsorbed
    2. PAH – freely filtered, completely secreted, not reabsorbed
    3. None of the answers are correct
    4. Glucose – freely filtered, not secreted, fully reabsorbed
    5. Creatinine – freely filtered, slightly secreted and not reabsorbed
    1. At Tₘₐₓ
    2. At the renal threshold for reabsorption
    3. Once it starts being secreted
    4. At a filtration fraction > 20%
    5. Once GFR approaches 120 mL/min
    1. It may be calculated using the clearance of PAH divided by the clearance of inulin. (C-PAH/C-Inulin)
    2. Normal filtration fraction is between 15-20%
    3. All are correct
    4. It may be calculated using the glomerular filtration rate divided by the renal plasma flow
    5. It represents the percentage of renal plasma flow that is filtered through the glomerulus
    1. PAH acid at low plasma concentrations
    2. PAH at high plasma concentrations
    3. Creatinine
    4. Glucose
    5. Inulin
    1. It is never reabsorbed under physiological conditions
    2. In severe hyperglycemic states it approaches GFR
    3. Excretion = filtration–reabsorption
    4. Plasma glucose concentration that exceeds the renal threshold for reabsorption will result in glycosuria
    5. It is never secreted into the urine

    Author of lecture Experimental Calculations of Renal Function (Part 1)

     Carlo Raj, MD

    Carlo Raj, MD


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