1)) If GFR is 125 ml/min, and you are studying a drug that has is cleared from t

Question

1)) If GFR is 125 ml/min, and you are studying a drug that has is cleared from the body at a rate of 20 ml/min, you can conclude that

A--The drug is secreted

B--The drug is reabsorbed

C--The drug is neither secreted nor reabsorbed

2)) If you were born with a regular/continuous capillary at the glomerulus instead of a fenestrated one, what impact on GFR would you see?

A----Increase GFR

B----Decrease GFR

C---No change to GFR

3)) Why does the kidney filters everything only to reabsorb almost all of it? It might be more efficient to simply choose particular items to get rid of. What might be the advantage of the filter-reabsob process?

Explanation / Answer

2). B--The drug is reabsorbed

From the given data, it can be observed that not all the drug filtered is eliminated, means, the drug is being reabsorbed into the circulation. About 99% of filtered water is reabsorbed into the circulation.

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