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Alternative Site Testing (AST)
You have the option of testing other sites on your body besides the ngertip. If blood from an alternative
site such as the palm, forearm, upper arm, thigh, or calf, is used, there are certain times when testing is not
appropriate (see next page). This is because your blood sugar level changes quicker in your ngertip than in
the alternative sites. These differences may cause you to make the wrong therapeutic decision, producing
adverse health effects. Please read the following section before you try testing from other sites.
Hypothenar
Thenar
IMPORTANT
Talk to your healthcare professional about Alternative Site Testing.