FAQ (Frequent Asked Question)

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How can i understand when it’s necessary to change a reagent?

Normally, running a control ( low and high) is possible check the reliability of a reagent. Anyway, as the control material is chemically treated, to increase its stability, it can have a little different behaviour in respect of serum sample. We suggest to verify the stability of blank o.d. and the calibrator factor. If they change more than 10-15% between different calibrations, discard the reagent and use a fresh one. This is an ndication of a decreased enzymatic activity and you can have wrong results, mainly in the pathological range.