Comparing the results:
■
When the lab tests your blood, only
the serum or plasma portion is used.
Your OneTouch
®
Basic
®
Meter uses
only whole blood.
■
Comparing serum or plasma to whole
blood is like comparing a temperature
of
98
.
6
°F with the temperature of
37
°C—in order to see if the values are
equal, you have to adjust one of the
results.
■
Whole blood results are
approximately
12
% lower than serum
or plasma results.
■
To compare lab results with meter
results, divide the lab result by
1
.
12
.
Example:
■
Assume that your lab result (plasma or
serum) is
224
mg/dL.
■
224
divided by
1
.
12
=
200
(the lab
value is now approximately equal to a
whole blood result).
■
Compare this figure to your meter
result. The two should be within
20
%
of each other.
You may still have a variation from the
result because blood glucose levels can
change significantly over short periods,
especially if you have recently eaten,
exercised, taken medication, or
experienced stress.
6
In addition, if you
have eaten
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