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| 0 votes | |||
| Author | 6 Posts | |||||||||||||||||||||||||||||||||||||||||||
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docofthebigapple
Forum Senior  Topics: 24 Posts: 185 |
A 35 year old man is reffered to a renal clinic for evaluation of proteinuria. He has no complaints other than a foamy urine. The following data are obtained. Inulin clearance........................100ml?min Plasma osmolarity.....................286mOsm/L Plasma Sodium concentration.....140mEq/L Urine flow.................................1.44L/24Hrs. Urine osmolarity........................205mOsm/L Urine Sodium Concentration.......100mEq/L What is the Sodium reabsorption per day in this patient? I am not giving choices in this question because you have to reach an answer and not pick one. Good luck.
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ssrpk
| Forum Junior  Topics: 154 Posts: 2850
net transport rate = filtration rate - excretion rate = [ GFR X P(Na) ] - [ U(Na) X V ] = [100 X 140] - [100 X 1.44L] = 14 mEq/min - 0.1 mEq/min = 13.9 mEq/min lengthy rather than difficult!
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luckiest
| Forum Senior Topics: 12 Posts: 82
Hi The urine flow is L/24hr ? Don't you have to calculate anything before out it in equation? Or it is even ml/min already? because the concentreation is meq/ml thankx
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ssrpk
| Forum Junior Topics: 154 Posts: 2850
yea buddy ofourse u gotta manage all those things...try solving it in the rough and ull get the same ans!
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guayoman
| Forum Elite  Topics: 44 Posts: 273
:?: well I don´t know exactly how you got to the conclusion that 1.44L/24h x 100mEq/ml is 0.1meq/min. I´m struggling with the convesion of mEq to ml, how´d you do that?
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ssrpk
| Forum Junior Topics: 154 Posts: 2850
hey dude u don't convert mEq into ml or L....simple.....L :arrow: ml will cancel other ml.....all tht is left in the eq. will be mEq/min
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