Your Free T4 is below range, but if you don't have a Free T3 test, you don't really have the full picture, since that's the active hormone that's used by individual cells. Can you get your doctor to order Free T3, along with TSH and Free T4?
What, if any, symptoms do you have?
Typically, the rule of thumb is for Free T4 to be maintained in the middle of its reference range and Free T3 to be maintained in the upper half to upper third of its reference range. During pregnancy, however, they often have to be maintained at higher levels in order to assure adequate hormones for developing fetus.
Thank you !
The Range for TSH is 0.32-5.04
And T4 is 10.6-19.7
What is the reference range for the Free T4, as shown on the lab report? Have you been tested for Free T3? If not, you should make sure they always test for both Free T4 and Free T3. Are you having any symptoms?
When taking adequate thyroid med, the TSH is frequently suppressed below range, so with that no natural thyroid hormone is being produced. So, I cannot think of any reason to be concerned about pituitary issues or growths on the thyroid gland, since your Free T4 and Free T3 levels levels are directly related to your med dosage, absorption, and even possibly the effect of progesterone/estrogen levels on TBG (thyroxine binding globulin), which binds most of the available T4 and T3, leaving only small portions unbound (Free T4 and Free T3).
Your body is providing thyroid hormone for both you and the baby so perhaps you just need an increase in the desiccated med. When were you previously tested and what were those results?
What's the reference range for the Free T4? Ranges vary from lab to lab and have to come from your own report... Also, have you had a Free T3 test done? Free T3 is the hormone that's actually used by nearly all the cells in the body, while Free T4 is a storage hormone.
It's not unusual to have suppressed TSH and low Free T4 when one is taking desiccated thyroid hormones. Many patients have to add a small dose of T4 only medication to keep Free T4 within the range.