# Blood test volume units

1. Jan 9, 2007

### DaveC426913

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 $$\mu$$mols.
- another unit is listed as "mL/min/1.73 m2" for eGFR. I'm pretty sure the "m2" is $$m^2$$

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. Jan 9, 2007

### dontdisturbmycircles

That sounds about right, I can't say I know for sure but I think the numbers only make sense if E9 = $$10^{9}$$

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
3. Jan 9, 2007

### DaveC426913

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.

4. Jan 9, 2007

### dontdisturbmycircles

I haven't had a blood test for years. I probably should go someday soon.

Oh well on the LDL, let it be motivation :-).

5. Jan 9, 2007

### Curious3141

Correct.
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'.

6. Jan 9, 2007

### DaveC426913

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...

Last edited: Jan 9, 2007