A reagentless whole-blood analyte detection system that is capable of being deployed near a patient has a source capable of emitting a beam of radiation that includes a spectral band. A touch screen system comprises an analog to digital converter capable of converting to digital signals analog signals from at least one analog resistive film in a touch screen. A data structure is processed indicating an association of data sets in the stored data, secondary storage sites, and update frequencies. In one implementation, the inflatable cuff may be made of any combination of layers that perform either or both of these functions. The compensator assembly utilizes a configuration of at least one spring disposed between two pistons so as to reduce the use of elastomer seals to thereby reduce a slip stick effect. The integrated circuit further comprises a charge pump coupled to the current source at a first node and to the output load at a second node and a recirculation circuit coupled to the first node and the second node.