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Things to Know When Using AST
Please read the following before testing at alternate sites
(forearms, palms, thighs, and calves).
The capillary whole blood of the fingertips reflects changes
in glucose levels more rapidly than in alternate sites. The test
results from the fingertip testing and AST may differ due to
factors such as lifestyle and ingested food which affect glucose
levels.
Acceptable Situations for AST
• Fasting period
• Before a meal
Situations Requiring Fingertip Test
• When the glucose levels are rapidly increasing, such as during
the two hours after a meal or exercise
• When sick or when glucose levels seem quite lower than test
value
• When hypoglycemia is not well recognized
• When insulin has the biggest effect
• Two hours after an insulin injection
CAUTION
AST results should never be used to calibrate Continuous
Glucose Monitoring Systems nor entered into an insulin
dosing calculator or pump for dosing recommendations.
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