Abstract: A system for determining usability of an analytical test strip includes a sample chamber to receive a fluid sample, a reagent in the sample chamber having a moisture-varying impedance, and two detection electrodes contacting the reagent. A test meter applies an AC waveform across the reagent via the detection electrodes while measuring an impedance of the reagent. A processor automatically determines whether the measured impedance of the reagent meets a dryness criterion. The meter includes a housing, a strip port connector, an impedance measurement circuit and the processor. A method for determining usability of a strip inserted in a hand held meter includes applying an AC waveform across a reagent of the strip and measuring a first electrical signal, and determining whether the strip meets the dryness criterion based on the first electrical signal. The test strip and ways of determining an analyte are also described.

Abstract: A system for determining usability of an analytical test strip includes a sample chamber to receive a fluid sample, a reagent in the sample chamber having a moisture-varying impedance, and two detection electrodes contacting the reagent. A test meter applies an AC waveform across the reagent via the detection electrodes while measuring an impedance of the reagent. A processor automatically determines whether the measured impedance of the reagent meets a dryness criterion. The meter includes a housing, a strip port connector, an impedance measurement circuit and the processor. A method for determining usability of a strip inserted in a hand held meter includes applying an AC waveform across a reagent of the strip and measuring a first electrical signal, and determining whether the strip meets the dryness criterion based on the first electrical signal. The test strip and ways of determining an analyte are also described.

Abstract: A system for determining usability of an analytical test strip includes a sample chamber to receive a fluid sample, a reagent in the sample chamber having a moisture-varying impedance, and two detection electrodes contacting the reagent. A test meter applies an AC waveform across the reagent via the detection electrodes while measuring an impedance of the reagent. A processor automatically determines whether the measured impedance of the reagent meets a dryness criterion. The meter includes a housing, a strip port connector, an impedance measurement circuit and the processor. A method for determining usability of a strip inserted in a hand held meter includes applying an AC waveform across a reagent of the strip and measuring a first electrical signal, and determining whether the strip meets the dryness criterion based on the first electrical signal. The test strip and ways of determining an analyte are also described.

Abstract: Various methods, devices and systems are described in which certain analyte test strip are identified for use in an analyte test meter or identified as unsuitable for use in the meter.

Abstract: Various methods, devices and systems are described in which certain analyte test strip are identified for use in an analyte test meter or identified as unsuitable for use in the meter.

Abstract: Various exemplary embodiments of methods and apparatuses are described and illustrated in which time and date of are provided to a medical device via wireless signals to ensure accurate time keeping by the medical device.