Systems and methods of discriminating control solution from a physiological sample
First Claim
1. A method for calculating a discrimination criteria for programming into a test meter for distinguishing between a blood sample and a control solution sample, the method comprising the steps of:
- (a) calculating an interferent index and a residual reaction index for a plurality of control solution samples in which the interferent index is based upon summing of at least two current values measured during a first test potential and the residual reaction index is based upon a ratio of at least two current values measured during a second test potential and third test potential, respectively; and
(b) calculating a discrimination criteria based on a regression of the interferent index and the residual reaction index for the plurality of control solution samples.
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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.
183 Citations
7 Claims
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1. A method for calculating a discrimination criteria for programming into a test meter for distinguishing between a blood sample and a control solution sample, the method comprising the steps of:
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(a) calculating an interferent index and a residual reaction index for a plurality of control solution samples in which the interferent index is based upon summing of at least two current values measured during a first test potential and the residual reaction index is based upon a ratio of at least two current values measured during a second test potential and third test potential, respectively; and (b) calculating a discrimination criteria based on a regression of the interferent index and the residual reaction index for the plurality of control solution samples. - View Dependent Claims (2, 3, 6, 7)
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4. 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 cell current; (c) summing at least two current values measured during the first test potential to generate an interferent index; (d) using the interferent index to distinguish between a blood sample and a control solution sample. - View Dependent Claims (5)
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Specification