Lifescan UltraSmart - Manual (Page 45)

36
COMPARING METER AND
LABORATORY RESULTS
OneTouch ® UltraSmart ™ Meter test results and laboratory test
results are both expressed in plasma-equivalent units. However,
your meter result may differ somewhat from your laboratory result
due to normal variation. Meter results can be affected by factors
and conditions that do not affect laboratory results in the same
way. Your OneTouch
® UltraSmart ™ Meter glucose value should
agree with a laboratory measurement within ±20% most of the
time under normal conditions. A result within that range is
considered accurate when testing with the OneTouch
® UltraSmart ™
Meter. However, results can differ by more than ±20% in some
situations. See the OneTouch
® Ultra ™ Test Strip package insert for
typical accuracy and precision data and for important information
on “Limitations of Procedure.”
To make an accurate comparison between meter and laboratory
results, follow these guidelines:
Before you go to the lab:
• Perform a control solution test to make sure the meter is
working properly.
• It is best to fast for at least eight hours before doing
comparison tests.
• Take your meter with you to the lab.
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