Abstract: A body fluid sampling system is provided. In one embodiment, the system may comprise a penetrating member driver, a plurality of penetrating members sufficient for penetrating tissue; a tape coupling together at least two of the penetrating members; and a penetrating member release device removing the penetrating member from a sterile environment prior to use and moving the penetrating member into position to be operatively coupled to the penetrating member driver. The driver may comprises of a drive force generator for advancing the penetrating member and a processor coupled to the drive force generator capable of changing the direction and magnitude of force exerted on the penetrating member during the lancing cycle. The driver may further include a human interface on the housing providing at least one output for communicating with the patient.