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OneTouch Ultra 2 Manual

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TROUBLESHOOTING AND DETAILED INFORMATION ABOUT YOUR SYSTEM
Detailed information about your system
Comparing meter and laboratory results
Test results with the OneTouch® Ultra® 2 Meter are plasma-calibrated. This helps you and your health care professional to compare your meter
results with laboratory tests. If you have been using another type of meter—one that provides whole blood-calibrated results—you may
notice that your test results with the OneTouch® Ultra® 2 Meter are approximately 12% higher.
OneTouch® Ultra® 2 Meter test results and laboratory test results both are expressed in plasma-equivalent units. However, your meter result
may dier from your laboratory result due to normal variation. Meter results can be aected by factors and conditions that do not aect
laboratory results in the same way.
Your OneTouch® Ultra® 2 Meter glucose value is considered accurate when it is within ±20% of the laboratory measurement. There are some
specic situations that could cause a dierence of more than ±20%:
• You have eaten recently. The blood glucose level from blood obtained from a ngertip can be up to 70 mg/dL higher than blood drawn from a
vein (venous sample) used for a lab test.
1
• Your hematocrit (percentage of your blood that is red blood cells) is high (above 55%) or low (below 30%).
• You are severely dehydrated.
• You tested at a temperature near the low end of the operating range (43°F) and you get a high glucose result (i.e., greater than 180 mg/dL).
In this situation, repeat the test in a warmer environment with a new test strip as soon as possible.
For accuracy and precision data and for important information on limitations, see the insert that comes with your test strips.
1. Sacks, D.B.: “Carbohydrates.” Burtis, C.A., and Ashwood, E.R. (ed.), Tietz Textbook of Clinical Chemistry. Philadelphia: W.B. Saunders Company (1994), 959.
To maximize your chances of an accurate comparison between meter and laboratory results, follow a few basic guidelines:
Before going to the lab
• Perform a control solution test to make sure the meter is working properly.
• Do Not eat for at least eight hours before you test your blood.
• Take your meter with you to the lab.
While at the lab
• Conduct your meter test within 15 minutes of the lab test.
• Use only fresh, capillary blood obtained from the ngertip.
• Follow all instructions in this User Guide for performing a blood glucose test with your meter.
Message What it means What to do
No result in memory, such as the rst time use
of the meter
or,
your meter was unable to recall this result.
This result will not be included in result
averages.
You can still perform a blood glucose test
and get an accurate result. Contact LifeScan
Customer Service at 1 800 227-8862 (7 days a
week, 8 a.m. - 8 p.m. Eastern Time) to report
this occurrence, unless this is your rst use of
the meter.
Your meter was unable to recall this result.
This result will not be included in result
averages.
You can still perform a blood glucose test and
get an accurate result, but contact LifeScan
Customer Service at 1 800 227-8862 (7 days a
week, 8 a.m. - 8 p.m. Eastern Time) to report
this occurrence.
… 29


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