Information about comparing the OneTouch Select Plus Simple® meter results to laboratory results including guidelines for obtaining an accurate meter to lab comparison, testing with the meter at the lab and comparing the meter results to those taken from another meter.
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OneTouch Select Plus Simple® meter
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Comparing meter results to laboratory results:
If you wish to check your meter's accuracy, compare it to a lab result.
Results obtained from the OneTouch Select Plus Simple® Meter and laboratory tests are reported in plasma-equivalent units. However, your meter result may differ from your lab result for any of several reasons.
Your meter measures glucose (sugar) in capillary blood, but the lab measures glucose in venous blood. When your blood sugar is changing because you have eaten, exercised, or taken medication, the difference between venous and capillary blood may be greater than when you are fasting. For example, if you have eaten recently, a result from fingertip testing may be up to 70 mg/dL higher than a lab test using blood drawn from a vein.*
Sacks, D.B.: "Carbohydrates." Burtis, C.A., and Ashwood E.R. (ed.), Tietz Textbook of Clinical Chemistry, Philadelphia: W.B. Saunders Company (1994), 959.
Therefore, when comparing a meter to a lab, it is important to fast for at least 8 hours. (It is OK to drink water.)
Meter results can be affected by factors that do not affect lab results in the same way. Specific factors that may cause your meter result to vary from your lab result may include:
Your haematocrit is above 55% or below 30%.
You are severely dehydrated.
For additional information, refer to the OneTouch Select® Plus Test Strip Insert.
According to an international standard* a result from your OneTouch Select Plus Simple® Meter is considered accurate when it is within 15 mg/dL of a laboratory method when the glucose concentration is lower than 100 mg/dL and within 15% of laboratory method when the glucose concentration is 100 mg/dL or higher.
*ISO 15197:2013. In vitro diagnostic test systems —Requirements for blood-glucose monitoring systems for self-testing in managing diabetes mellitus.
Perform a control solution test to make sure your meter is working properly.
Do Not eat for at least 8 hours before you test your blood.
Take your meter and testing supplies with you to the lab.
Testing with your OneTouch Select Plus Simple® Meter at the lab:
Test within 15 minutes of the lab test.
Use only a fresh, capillary blood sample from your fingertip.
Follow all instructions in your Owner's Guide for performing a blood glucose test.
Comparing your meter results to those taken from another meter
Comparing your blood glucose test results taken with this meter to your results taken from a different meter is not recommended. Results may differ between meters and are not a useful measure of whether your meter is working properly.
