FIELD: medicine; physics.
SUBSTANCE: group of inventions relates to systems for measuring concentration of glucose in a sample of physiological fluid of a patient suffering from diabetes. Disclosed is a system for measuring glucose, comprising a test strip, and a glucose meter, which includes a body, a port connector for the test strip and a microprocessor. At that, microprocessor is made with possibility (a) apply a first signal to the hematocrit detecting electrodes to determine a hematocrit level of the fluid sample; (b) assess glucose concentration based on an output signal measured at a predetermined sampling time; (c) applying a second signal to the working electrodes at a predetermined sampling time, where the sampling time is determined by searching for a determined hematocrit and the estimated glucose concentration of the fluid sample in the stored reference table; (d) measuring an output signal at a predetermined sampling time for working electrodes; (e) assessing, for working electrodes, whether the difference between the corresponding values of the output signal at a predetermined sampling time and the predetermined sampling time is less than a predetermined threshold value; (f) if the difference for each working electrode is equal to or greater than a predetermined threshold value, determine or calculate glucose concentration; (g) if the difference in the value for each working electrode is less than the predetermined threshold value, report the error. Also disclosed are a method of determining glucose by a biosensor and a system for measuring glucose, involving setting an error flag in case output signals are less than a given threshold value.
EFFECT: group of inventions enables to determine a hematocrit-related error and an output signal of the biosensor.
19 cl, 26 dwg, 3 tbl
