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Blood test volume units

  1. Jan 9, 2007 #1


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    I just got my blood test back and the numbers have some units I don't recognize, such as E9 and E12.

    The printer seems to not be able to handle very sophisticated formatting, for example:
    - one unit is listed as "UMOL/L" for Creatinine. I suspect that this is meant to be [tex]\mu[/tex]mols.
    - another unit is listed as "mL/min/1.73 m2" for eGFR. I'm pretty sure the "m2" is [tex]m^2[/tex]

    So E12 is the unit for my red blood cell count.
    And E9 is for white blood cell count, and a bunch of others including neuts, lymph mono, eos, baso.

    Anybody know what these units are?

    Exponent 9 and Exponent 12 maybe?

    [ EDIT ]
    It is, isn't it?

    The line item actually says

    WBCC (mine: 6.8) (low: 4.0)-( high:11.0) x E9/L

    That means I had 6.8x10^9 WBCs per L.
    Last edited: Jan 9, 2007
  2. jcsd
  3. Jan 9, 2007 #2
    That sounds about right, I can't say I know for sure but I think the numbers only make sense if E9 = [tex]10^{9}[/tex]

    So the number of WBC's in a liter of your blood is almost equivalent to the number of people walking around on the earth. :D. Sounds like you are healthy :P
    Last edited: Jan 9, 2007
  4. Jan 9, 2007 #3


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    Yeah. I'm looking over all my results. They ALL fall nicely in the green. That's especially good for a Diabetic.

    OK, all except LDL. I got a 2.84. My doc want to see it under 2.00.
  5. Jan 9, 2007 #4
    I haven't had a blood test for years. I probably should go someday soon.

    Oh well on the LDL, let it be motivation :-).
  6. Jan 9, 2007 #5


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    Correct. 1.73 m^2 is average body surface area (hence the figure is normed to the average build). eGFR is estimated Glomerular Filtration Rate, a measure of basic kidney function.

    Exponents to base 10. Neuts = Neutrophils, Lymph = Lymphocytes, Mono = Monocytes, Eos = Eosinophils, Baso = Basophils. All various subtypes of white blood cells. It's called a 'differential count'.
  7. Jan 9, 2007 #6


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    Yeah. I thought this was interesting - a unit of area. Not a common measurement in biology.

    That particular result also has a footnote: "For patients of African descent, the reported eGFR must be multiplied by a correction factor of 1.21."

    Perhaps Africans have less skin and it's stretched particularly tightly over their frames...:biggrin:
    Last edited: Jan 9, 2007
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