Oncology Questions? Ask an Oncologist for Answers ASAP
This is Dr. David
TSH level of 2.58 is normal and could mean her thyroid levels are completely normal
T4 have the shortest 1/2 life in the body an can fluctuate the most
so high or low levels of T4 once in a while is not a worry.
that is good she is seeing an endocrinologist.
but I don't know why her doctors are saying she has overactive thyroid function.
that would cause the TSH levels to be less than 0.3
has her TSH levels been low before?