T3 Uptake is a test that measures the binding capacity of thyroid hormone binding proteins in the blood. This test can help assess thyroid function.

iollo markers that associate with T3 Uptake


Phenylalanine is converted to tyrosine, which is needed for thyroid hormone synthesis. Altered phenylalanine metabolism could affect T3 uptake.


Tyrosine is required for the synthesis of thyroid hormones T3 and T4. Changes in tyrosine levels may impact thyroid function and T3 uptake.