COMPARING THE InDuo™ METER AND LABORATORY RESULTS 59
•Never use your InDuo™ meter with blood that has been collected in a
•Use only fresh capillary blood obtained from the fingertip.
Other reasons for variation Besides the factors listed in the OneTouch® Ultra Test Strip package insert there are other reasons for variations:
•Blood glucose levels can change significantly over short periods, especially if you have recently eaten, exercised, taken medication, or experienced stress1.
•If you have eaten recently, the blood glucose level from a fingertip blood sample can be up to 3.9 mmol/L
(70 mg/dL) higher than blood drawn from a vein (venous sample) used for a laboratory test2. It is therefore best
to fast for 8 hours before doing a comparison test between an InDuo™ meter result and a laboratory result.
•Physical factors, such as the amount of red blood cells in the blood (a high or low hematocrit) or the loss of body fluids (severe dehydration) may also cause an InDuo™ meter test result to be different from a laboratory result.
References
1.Surwitt, R.S., and Feinglos, M.N.: Diabetes Forecast (1988), April,
2.Sacks, D.B.: “Carbohydrates”. Burtis, C.A., and Ashwood, B.R. (ed.), Tietz Textbook of Clinical Chemistry.
Philadelphia: W.B. Saunders Company (1994), 959