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Old 11-10-2011
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Kidney Calculating the tubular reabsorption!

Substance X is freely filterable and is neither metabolized nor stored in the kidney. The plasma concentration of X is 1 mg/mL, and 25 mg of X/min appears in the urine. The inulin clearance is l00 mL/min. The tubular reabsorption of X (in mg/min) is
(A) 25
(B) 75
(C) 250
(D) 750
(E) 2500
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Old 11-10-2011
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Filtered load = 100 * 1 =100
reabsorbtion= 100-25 =75
the answer is BBBB
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The above post was thanked by:
Ali Khaliq (03-05-2016)


Physiology-, Renal-, Step-1-Questions

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