t3 is T3, which refers to triiodothyronine, and t4 is T4, which refers to thyroxine. T3 and T4 are normal, and thyrotropic hormone 0.001 μIU/ml suggests that subclinical hyperthyroidism (which is the abbreviation of subclinical hyperthyroidism) may be present, and it is not considered to be serious if it is asymptomatic, but if there is myocardial damage and cardiac arrhythmia, then it may be more serious.
The normal range of thyrotropin is 0.35 to 5.5 μIU/ml, so a thyrotropin of 0.001 μIU/ml is low. Patients with subclinical hyperthyroidism may present with T3 and T4 in the normal range but serum thyrotropin below the normal reference range.
If T3 and T4 are normal but thyrotropin 0.001μIU/ml is present, it is recommended to go to the hospital and ask the doctor to make a judgment based on the specific situation.