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How many times is blood filtered in the kidney?

  1. Feb 2, 2016 #1
    • Thread moved from the technical forums, so no HH Template is shown.
    The blood that circulates in our body is about 1/12 of our mass. If the kidneys filter 7.5 liter of blood a hour, then how many times does it filter in the kidney the whole blood of a person will mass 60kg?
    Here's what my teacher did:
    1/12*60=5 liter blood
    0.55*5=2.75 liter plasma of blood.
    The plasma is filtered 60 times is 24 hours. (how did she find that?)
    24 hours ->60 times the plasma filters
    1 hour -> x
    x=2.5 times
    Do you understand her explanation? What should I do next?
     
  2. jcsd
  3. Feb 2, 2016 #2

    phyzguy

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    Science Advisor

    If the kidneys filter 7.5 liters of blood in one hour, how many liters do they filter in 24 hours? How many times larger is this than the volume of plasma?
     
  4. Feb 2, 2016 #3
    In 24 hours 180 liters blood and 0.55*180=99 liters plasma.
     
  5. Feb 3, 2016 #4
    What should I do next?
     
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