The Characterization of Blood Volumes of Commercially Available Lancing Devices

Primary Objective: • Characterize expressed blood volume ≥1μL across representative, commercially available lancing device systems using finger sticks. Secondary Objectives: the following characterizations will be performed in the data analysis within each device and across each device: * Correlation of Subject pain response to blood volume collected; * Proportion of Subjects that produce sufficient blood to fill a 1µl test strip; * Proportion of Subjects that generate ≥1µl blood volume; * Proportion of Subjects who generate multiple- times the blood volume needed to fill a 1µl test strip * Proportion of Subjects who generate multiple- times ≥1µl of blood volume * Proportion of Subjects that produce on average (≥1µl) of blood volume on 1st attempt * Proportion of Subjects that produce on average (≥1µl) of blood volume on their first and second lancing attempt