Summer.Thunder
Forum Elite
Topics: 71
Posts: 180
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serum urine
Na meq/l 140 100
K meq/l 4 50
glucose mg/dl 100 0
creatinine mg/dl 1 100
p-aminohippuric acid mg/ml 0.1 50
urine flow 1ml/min, ask for filtration fraction
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| Tiff
Forum Guru
Topics: 54
Posts: 562
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Not sure I can understand the values listed like creatine 1 100 and PAH 0.1 50. But here is a way to figure this out.
FF = GFR/RPF
RPF = Concentration PAH
GFR = Creatine clearance
Hope this helps
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| norepinephrine
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GFR= creatinine clearance=1x1/0.001=100 ml/min
RPF= PAH clearance=50x1/0.1=500 ml/min
FF= GFR/RPF= 100/500=0.2
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