T4 thyrotoxicosis

T4 thyrotoxicosis

Hyperthyroidism in which T4 but not T3 is increased, which occurs in patients with iodine-induced thyrotoxicosis and in euthyroid patients who are sick for other reasons.

T₄ thyrotoxicosis

Hyperthyroidism in which T₄ but not T₃ is ↑, which occurs in Pts with iodine-induced thyrotoxicosis and in euthyroid Pts who are sick for other reasons. See Euthyroid sick syndrome.