A method for measuring glucose in a blood sample, said method comprising the steps of: a) connecting a constant current source having a constant current value to a blood sample test strip; b) introducing a blood sample onto the blood sample test strip; c) reacting the blood sample with an enzyme in the blood sample test strip to produce a charge, Q, on the blood sample test strip; d) measuring a voltage on the blood sample test strip in determining a voltage value thereof; e) determining whether the voltage value of the voltage on the blood sample test strip has significantly decreased from a first voltage value, wherein e1) if the voltage value has not significantly decreased from the first voltage value then return to step d), and e2) if the voltage value has significantly decreased from the first voltage value then continue to step f); f) disconnecting the constant current source from the blood sample test strip; g) waiting a soak time; h) starting a timer to determine a charge removal time after the soak time is over; i) reconnecting the constant current source to the blood sample test strip; j) measuring the voltage on the blood sample test strip in determining the voltage value thereof; k) determining whether the voltage value of the voltage on the blood sample test strip has significantly increased from a second voltage value, wherein k1) if the voltage value has not significantly increased from the second voltage value then return to step j), and k2) if the voltage value has significantly increased from the second voltage value then stop the timer and continue to step 1); l) determining a charge value of the charge on the blood sample test strip by multiplying the charge removal time and the constant current value; and m) determining a blood glucose level from the charge value. a) connecting a constant current source having a constant current value to a blood sample test strip; b) introducing a blood sample onto the blood sample test strip; c) reacting the blood sample with an enzyme in the blood sample test strip to produce a charge, Q, on the blood sample test strip; d) measuring a voltage on the blood sample test strip in determining a voltage value thereof; e) determining whether the voltage value of the voltage on the blood sample test strip has significantly decreased from a first voltage value, wherein e1) if the voltage value has not significantly decreased from the first voltage value then return to step d), and e2) if the voltage value has significantly decreased from the first voltage value then continue to step f); e1) if the voltage value has not significantly decreased from the first voltage value then return to step d), and e2) if the voltage value has significantly decreased from the first voltage value then continue to step f); f) disconnecting the constant current source from the blood sample test strip; g) waiting a soak time; h) starting a timer to determine a charge removal time after the soak time is over; i) reconnecting the constant current source to the blood sample test strip; j) measuring the voltage on the blood sample test strip in determining the voltage value thereof; k) determining whether the voltage value of the voltage on the blood sample test strip has significantly increased from a second voltage value, wherein k1) if the voltage value has not significantly increased from the second voltage value then return to step j), and k2) if the voltage value has significantly increased from the second voltage value then stop the timer and continue to step 1); k1) if the voltage value has not significantly increased from the second voltage value then return to step j), and k2) if the voltage value has significantly increased from the second voltage value then stop the timer and continue to step 1); l) determining a charge value of the charge on the blood sample test strip by multiplying the charge removal time and the constant current value; and m) determining a blood glucose level from the charge value.