Testing from the forearm provides an opportunity to give your patients' tender fingertips a break. There are fewer nerve endings in the forearm, so testing is less painful. Around three out of four patients who tested on their forearm reported no pain at all or much less pain than a fingerstick.

Before your patients begin testing using blood from the forearm, they should be advised to consult their healthcare professional.

When your patients test under certain conditions, blood glucose test results obtained using samples taken from the forearm may differ significantly from fingertip samples.

The conditions in which differences in blood glucose results between the forearm and the fingertip are most likely to occur are when blood glucose levels are changing rapidly such as following a meal, an insulin dose, or physical exercise.

Your patients should test using the fingertip within two hours after food intake, insulin dose or physical exercise, or when glucose levels may be changing rapidly.

Testing with blood samples from the forearm is appropriate only for testing prior to, or more than two hours after, food intake, insulin dose or physical exercise.