Biochemical tests showed elevated free thyroxine ( T4 : 20.8 pg/ml ( normal , 8.5-18 ) ) and triiodothyronine ( T3 : 5.7 pg/ml ( normal , 1.4-4 ) ) in the serum , together with an inappropriately nonsuppressed TSH level of 4.7 mU/ml ( normal , 0.4-4 ) .
O O O O O B-ChemicalEntity O B-ChemicalEntity O O O O O O O O O O B-ChemicalEntity O B-ChemicalEntity O O O O O O O O O O O O O O O O O O B-GeneOrGeneProduct O O O O O O O O O O