What is Linearity Verification?

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The page below is a sample from the LabCE course Calibration of Clinical Laboratory Analytes. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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What is Linearity Verification?

Linearity refers to the relationship between the final analytical result for measurement and the concentration of the analyte being measured. This distinction is relevant because a plot of analyte concentration versus measurement signal from the instrument may not be linear in the literal sense that the relationship forms an actual straight line. Related to linearity is the concept of the analytical measurement range (AMR).