Vertex Diagnostics UltraTRAK Pro Manual do Proprietário descarregar pdf (Página 45)

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You may still have a variation from the result because

blood glucose levels can change signicantly over short

periods, especially if you have recently eaten, exercised,

taken medication, or experienced stress*

. In addition, if

you have eaten recently, the blood glucose level from a

nger stick can be up to 70 mg/dL (3.9 mmol/L) higher than

blood drawn from a vein (venous sample) used for a lab

test*

. Therefore, it is best to fast for eight hours before

doing comparison tests. Factors such as the amount of red

blood cells in the blood (a high or low hematocrit) or the

loss of body uid (severe dehydration) may also cause a

meter result to be different from a laboratory result.

References

*2: Surwit, R.S., and Feinglos, M.N.: Diabetes Forecast (1988), April,

49-51.

*3: Sacks, D.B.: “Carbohydrates. “ Burtis, C.A., and Ashwood, E.R.( ed.),

Tietz Textbook of Clinical Chemistry. Philadelphia: W.B. Saunders Com

pany (1994), 959.

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Vertex Diagnostics UltraTRAK Pro Manual do Proprietário Página 45