We’ve all seen those commercials proclaiming you no longer have to prick your finger to check your blood glucose. However, what the commercials are suggesting is not exactly true because there is still a needle involved. Only you have the option of testing your blood glucose using a site other than the finger tips. The medical term "alternate site testing", refers to checking blood glucose levels using a sample of blood from the palm, forearm, upper arm, thighs, and even the calf.

Most of us have had our fingers pricked during visits to the doctor. The lancet device or needle used at the doctors’ office is a one size fit all. There is a need to get an adequate sampling from everyone so an elderly woman will receive the same size needle as a young man with callus on his hands. The discomfort associated with the finger pricks can lead to fear and anxiety, especially for patients requiring frequent blood glucose test. Alternate site testing is a great alternative for people with a fear of sticking their finger tips. The major advantage to alternate site testing is that these areas are not as sensitive as the finger tip, so the test does not cause as much discomfort.

Blood glucose monitoring using the finger tip is the most accurate site for blood glucose testing. Thus, the main disadvantage to alternate site testing relates to the accuracy of the blood glucose result. There is about a fifteen minute discrepancy between the fingertip and forearm when monitoring blood glucose levels. This discrepancy could potentially result in the mistreatment of diabetes. Therefore, it is recommended that if you feel symptoms of high or low blood glucose, you should check your blood glucose using the fingertip rather than an alternate site. Despite this discrepancy, alternate site testing is a sensible and acceptable option for routine blood glucose testing particularly when blood sugar levels are stable.

Most major meter brands are approved for alternate site testing and include the materials needed for testing. If you have questions about whether you can use your meter for alternate site testing, call customer service using the 800 number on the back of your meter and ask. You can also discuss alternate site testing with your healthcare provider or diabetes educator.