4. Alternative Site Test
Important
It is recommended that alternative site testing be used when sugars are
stable: before meals and before bedtime. However, when sugars are
changing, blood from the fingertip may show these changes sooner than
blood from other body areas.
Limitation
1. Alternative site testing results should never be used to calibrate continuous
glucose monitoring systems.
2. Alternative sampling results should never be used in insulin dosing
calculations.
Lancing and sampling from an alternative site area
Sampling from your upper arm, forearm, ventral palm, or dorsal hand allows
you to use your fingertips less often.
You may find that obtaining a blood sample from an alternative site is less
painful than using a fingertip.
Upper Arm
Forearm
Dorsal Hand,
Ventral Palm
Fingertips