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Prodigy Meter Owner’s Manual
You may still have a variation from the result because blood
glucose levels can change significantly over short periods,
especially if you have recently eaten, exercised, taken medication,
or experienced stress.
1
In addition, if you have eaten recently, the
blood glucose level from a finger 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.
2
Therefore, it is best to fast for eight (8) 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
fluid (severe dehydration) may also cause a meter result to be
different from a laboratory result.
References: 1) Surwit, R.S., and Feinglos, M.N.: Diabetes Forecast (1988), April,
49-51. 2) Sacks, D.B:“Carbohydrates.” Burtis,C.A, and Ashwood,E.R.(ed.),Tietz
Textbook of Clinical Chemistry. Philadelphia:W.B. Saunders Company (1994),959.
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