A method for calculating a parasitic impedance of at least one trace of a biosensor test strip, the biosensor test strip comprising: a working electrode; a working electrode trace operatively coupled to the working electrode; a working sense trace operatively coupled to the working electrode; a counter electrode; a counter electrode trace operatively coupled to the counter electrode; a counter sense trace operatively coupled to the counter electrode; the method comprising the steps of: selectively placing a resistor having a known impedance in series with the working sense trace and working electrode trace to form a series circuit having a series circuit impedance comprising the known impedance of the resistor and a working sense trace impedance and a working electrode trace impedance; selectively applying a stimulus with an operational amplifier to produce a current passing through the series circuit; measuring the current flowing through the series circuit by a current to voltage amplifier; providing the output of the current to voltage amplifier to a microprocessor through A/D; using the current measurement in a microprocessor to calculate the parasitic impedance of the working sense trace and the working electrode trace of a biosensor test strip. a working electrode; a working electrode trace operatively coupled to the working electrode; a working sense trace operatively coupled to the working electrode; a counter electrode; a counter electrode trace operatively coupled to the counter electrode; a counter sense trace operatively coupled to the counter electrode; the method comprising the steps of: selectively placing a resistor having a known impedance in series with the working sense trace and working electrode trace to form a series circuit having a series circuit impedance comprising the known impedance of the resistor and a working sense trace impedance and a working electrode trace impedance; selectively applying a stimulus with an operational amplifier to produce a current passing through the series circuit; measuring the current flowing through the series circuit by a current to voltage amplifier; providing the output of the current to voltage amplifier to a microprocessor through A/D; using the current measurement in a microprocessor to calculate the parasitic impedance of the working sense trace and the working electrode trace of a biosensor test strip. selectively placing a resistor having a known impedance in series with the working sense trace and working electrode trace to form a series circuit having a series circuit impedance comprising the known impedance of the resistor and a working sense trace impedance and a working electrode trace impedance; selectively applying a stimulus with an operational amplifier to produce a current passing through the series circuit; measuring the current flowing through the series circuit by a current to voltage amplifier; measuring the current flowing through the series circuit by a current to voltage amplifier; providing the output of the current to voltage amplifier to a microprocessor through A/D; using the current measurement in a microprocessor to calculate the parasitic impedance of the working sense trace and the working electrode trace of a biosensor test strip.