Figure 3.
Changes in A, free thyroxine (FT4) and B, free 3,5,3′-triiodothyronine (FT3) concentrations after the start of methimazole therapy in 5 patients with normal/increased uptake of technetium (Sci+) and in 6 with absent uptake (Sci–). Gray areas indicate normal values of FT4 and FT3.*P less than .05 between the 2 groups.