DrVirgo
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| DrVirgo
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If you can't read it, here is the question:
A 22 year old woman is participating in a study that measures renal function. Evaluation of serum and urine shows the following:
Serum Urine
Na 140 100
K 4 50
Glucose 100 0
Creatinine 1 100
PAH 0.1 50
Assume a urine flow of 1ml/min. Which of the following best represents her filtration fraction?
A. 0.1
B. 0.2
C. 0.3
D. 0.4
E. 0.5
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| robin082006
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E?
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| marwa
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B. 0.2
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| PatriciaLim
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Filtration Fraction = GFR/RPF
GFR=C creatinine
RPF= C PAH
FF =1/0.1? makes, figure doesnt make sense to me.
Maybe i am wrong
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| robin082006
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FF=GFR/RBF=(U oF Cre * V/P of Cre)/(U of PAH*V/P of PAH)=100/500=0.2
Sorry I calculated wrongly. Hope never make this mistake again.
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| DrVirgo
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Yep, thats what I got too... B is right. 
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| Cedrick
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Thank you for the fourmula for this concept
B
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