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3 August, 13:00

The amount of red blood cells in a blood sample is equal to the total amount in the sample minus the amount of plasma. What is the total amount of blood drawn?

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  1. 3 August, 16:20
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    Step-by-step explanation:

    The question is:

    The amount of red blood cells in a blood sample is equal to the total amount in the sample minus the amount of plasma. What is the total amount of blood drawn? Red blood cells = 45% Plasma = 5.5 ml

    Solution:

    We have given:

    The amount of red blood cells in a blood sample is equal to the total amount in the sample minus the amount of plasma. We need to find how many ml is 1% of blood.

    The equation we get is:

    Red blood cells = total sample - amount of plasma

    45% = 100% - 5.5 ml

    Combine the percentages:

    5.5 ml = 100%-45%

    5.5 ml = 55%

    0.1 ml = 1%

    1% = 0.1 ml

    Now you can find out red blood cells volume or total sample volume.

    Red blood cells volume = 45% x 0.1ml/%

    = 4.5ml

    Total sample volume = 100% x 0.1ml/%

    = 10ml.
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