Patent ID: 7927882

Claim:
A method for determining the concentration of a first, medically significant component of a biological fluid or a control, the biological fluid or control including a second component which affects the determination of the concentration of the first component, the method including performing a first measurement of a time-varying function i 1 (t) on the biological fluid or control which first measurement varies with both the concentration of the first component and at least one of the presence and concentration of the second component, i 1 (t) having the general form i 1 ( t ) =M /sqrt( t ) +B where t is time from initiating the measurement, M is the slope of a graph of the function and B is a value the function approaches as t becomes very large, performing a second measurement on the biological fluid or control which second measurement has the form of a time-varying function i 2 (t), where t is time, t<some arbitrarily established time, i 2 (t) varying primarily only with the at least one of the presence and concentration of the second component to develop an indication of the at least one of the presence and concentration of the second component, and removing an amount representative of the indicated presence or concentration of the second component from the concentration of the first component indicated by the first measurement.