Lifescan ONE TOUCH BASIC BLOOD GLUCOSE MONITORING SYSTEM Owner's Booklet page 77

Q. Why don't my Meter results
match the results that I got from
my doctor's laboratory exactly?
A. Many Health Care Professionals
believe that the result that you get
with your Meter should fall within
15% to 20% of the result obtained
when whole blood is tested on
laboratory equipment.
there are a number of reasons why
the blood glucose result from your
Meter may vary even more than 20%
from a laboratory result.
the most common reasons is that
laboratories use serum or plasma
samples, while home blood glucose
monitors use whole blood. Whole
blood results are approximately
However,
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One of
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10%–12% lower than serum or
plasma values from the same blood
sample (at average hemocrit levels
of 41%–45%). To adjust for this
difference, divide the laboratory
value by 112% or 1.12.
Example:
Let's assume your lab (plasma)
result is 8.3 mmol/L.
8.3 divided by 1.12 = 7.4 mmol/L.
Compare your Meter result to
7.4 mmol/L.
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