Fig. 3. Results of MU estimation using different calculation methods.
Abbreviations: MU, measurement uncertainty; u_tot, standard uncertainty calculated regardless of a reagent lot change; u_sub, combined uncertainty calculated using values obtained from each subgroup; ALP, alkaline phosphatase; K, potassium; Na, sodium; BUN, blood urea nitrogen.

Ann Lab Med 2022;42:630~637 https://doi.org/10.3343/alm.2022.42.6.630