Is the commercial kit's normal range for various analytes technology specific?

ABSTRACT

Laboratory based tests form an important component in the final diagnosis. These tests are carried out on different commercially available systems, which have specific reagent kits that are available for determination of various analytes of the human body. A majority of laboratories resort to adoption of normal ranges that have been proposed by the kit manufacturers, and hence exhibit a great variation. The frequent change from one kit to another often results in the formulation of new reference ranges. This paper describes the variation in normal ranges for two different systems of the same manufacturer, based upon different technologies. It seems that the normal range does not vary with the kits, but with the studied population