Systems and methods for discriminating control solution from a physiological sample
First Claim
1. A method for distinguishing between a blood sample and a control solution sample, the method comprising the steps of:
- (a) introducing a sample into an electrochemical cell, the electrochemical cell comprising;
(i) two electrodes in a spaced apart relationship; and
(ii) a reagent;
(b) applying a first test potential, having a first polarity, between the electrodes, and measuring a first current transient;
(c) applying a second test potential, having a first polarity, between electrodes, and measuring a second current transient;
(d) applying a third test potential, having a second polarity, between the electrodes, and measuring a third current transient;
(e) calculating, based on the first current transient, a first reference value related to the quantity of redox species in the sample;
(f) calculating, based on the second and third current transients, a second reference value related to reaction kinetics; and
(g) determining, based on the first and second reference values, whether the sample is a control solution sample or blood sample.
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Abstract
Described herein are systems and methods for distinguishing between a control solution and a blood sample. In one aspect, the methods include using a test strip in which multiple current transients are measured by a meter electrically connected to an electrochemical test strip. The current transients are used to determine if a sample is a blood sample or a control solution based on at least two characteristics. Further described herein are methods for calculating a discrimination criteria based upon at least two characteristics. Still further described herein are system for distinguishing between blood samples and control solutions.
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13 Claims
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1. A method for distinguishing between a blood sample and a control solution sample, the method comprising the steps of:
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(a) introducing a sample into an electrochemical cell, the electrochemical cell comprising; (i) two electrodes in a spaced apart relationship; and (ii) a reagent; (b) applying a first test potential, having a first polarity, between the electrodes, and measuring a first current transient; (c) applying a second test potential, having a first polarity, between electrodes, and measuring a second current transient; (d) applying a third test potential, having a second polarity, between the electrodes, and measuring a third current transient; (e) calculating, based on the first current transient, a first reference value related to the quantity of redox species in the sample; (f) calculating, based on the second and third current transients, a second reference value related to reaction kinetics; and (g) determining, based on the first and second reference values, whether the sample is a control solution sample or blood sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification