TSH normal,T3 and T4 slightly elevated

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my TSH was normal but my FT3 and FT4 was slightly elevated,i did an mri of the pituitary gland and it came out normal can anyone of you explain this please?

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  • Posted

    Hi, do you perhaps have your blood test levels? I am asking because normal is a rather broad term covering a whole range of values.

    Did the mri scan include the hypothalamus? In rare cases the culprit is the hypothalamus which overstimulates the pituitary gland by secreting too much TRH . This is called tertiary hyperthyroidism.

    Do you take any medication or supplements? Some medications can interfere with TSH measurements or may displace thyroid hormone from its binding globulin (TBG).

    I would recommend having a look at the scientific article "Pitfalls in the measurement and interpretation of thyroid function tests", 2013. (I will forward you more information link via private message.)

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    • Posted

      TSH:3.17ulU/mL. 0.45-4.5

      T3:4.59pg/mL. 2.0-4.4

      T4:1.96ng/dL. 0.8-1.8

      yes i have been have different kinds of medications and supplements all this time so i really do not know it that is the cause,my endocrinologist told me that could be the reason however she has prescribed for me inderal 20mg

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    • Posted

      Hi Akshay,

      Your numbers look a bit strange: T3 and T4 turning hyper, but TSH shows you're leaning hypo! I would suspect there maybe test error. (it's not uncommon that thyroid test may be out of line) How is your latest status? Hope all is clarified.

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