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ERROR MESSAGES AND DETAILS ABOUT YOUR SYSTEM
Detailed information about your system
Comparing meter and laboratory results
Test results with the OneTouch® UltraEasy® Meter are plasma-calibrated. This helps you and your healthcare 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® UltraEasy® Meter are approximately 12% higher. OneTouch® UltraEasy® Meter test results
and laboratory test results both are expressed in plasma-equivalent units. However, your meter result may differ 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® UltraEasy® Meter glucose value is considered accurate when it is within ±20% of the laboratory measurement. There are some
specific situations that could cause a difference of more than ±20%:
• You have eaten recently. The blood glucose level from a fingertip can be up to 3.9 mmol/L higher than blood drawn from a vein (venous
sample) used for a lab test.
1
• Your haematocrit (percentage of blood that is red blood cells) is high (above 55%) or low (below 30%).
• You are suffering from severe dehydration.
• You tested at a temperature near the low end of the operating range (6°C) and you get a high glucose result (i.e., greater than 10.0 mmol/L).
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. 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 fingertip.
• Follow all instructions in this User Guide for performing a
blood glucose test with your meter.
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.
Technical specifications
Reported result range
1.1–33.3 mmol/L
Calibration
Plasma-equivalent
Sample
Fresh capillary whole blood
Test time
5 seconds
Assay method
Glucose oxidase biosensor
Meter power source
One replaceable 3.0 Volt CR 2032
lithium battery (or equivalent)
Unit of measurement
mmol/L
Memory
500 blood glucose test results
Automatic shutoff
2 minutes after last action
Size
10.8 x 3.20 x 1.70 cm
Weight
Approximately 40 grams, with battery
Operating ranges
Temperature: 6–44
°
C
Altitude: up to 3048 meters
Relative humidity: 10–90%
Haematocrit: 30–55%
Battery ratings
One 3.0 V d.c., 3 mA
(one CR 2032 battery)
direct current
