paganini
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A month after 80% of the nephrons are destroyed, what will the blood urea concentration be, assuming it was 5 mmol/L before the disease occurred and assuming dietary protein remains the same? A. 25 mmol/L B. 5 mmol/L C. 6 mmol/L D. Continuously rising
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| new_n_lost
Politically InCorrect
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D. Continuously rising ???
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| paganini
Forum Senior
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The answer is A.
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| paheli
It'sAllAboutGoodKarma
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does the answer have to do with only a fifth of the nephrons being available for filtration pruposes? thanks
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| Capricious
Forum Newbie
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D
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| drduck
Forum Guru
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this one was really good......
actually i too went for option D......
but if A is the answer....there had to be a reason...
i thought why not think of clearence of urea...
if nephron ability normally was 100% the serum level was 5...
considering first order kinetics......
100.................5
50...................10
25....................20
20..................~25
on left was the functioning nephrons left
on the right is serum level of urea.
plz tell me was i correct
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