Plasma urea concentrations were measured at 18 mg/dL. A 24 hour urine sample measures...

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Tracy Wawa

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...16.2 gm/day.....? Plasma urea concentrations were measured at 18 mg/dL. A 24 hour urine sample measures 16.2 gm/day. What is the percentage of urea excreted? Assume complete filtration of urea and a GFR of 180 L/day.
Choose one answer.
a. 50%
b. 44%

PLEASE SHOW WORK!
 
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