Aa
A
A
Close
Avatar universal
Questioning the lowering of my synthroid dose
I had a total thyroidectomy 30 years ago when I was 24 years old for encapsulated single nodule papillary cancer with no metastases.  I received the  i131 radiation ablative dose 8 years later.  Normal scans and lab work since, although the specific lab tests ordered have varied for some reason through the years so it has been slightly frustrating to track changes in these levels over time..  I have been on .2mg of synthroid daily for at least 20 years and have felt good and maintained my typical weight. I have been followed by my family physician yearly (and occassionally have seen an endocrinologist - as recently as 3 years ago, who thought my labs were good).

Recently my family physician said he thought my T4, free  was getting too high (2.1).   - having a reading of TSH that remains consistent at around .04 -.06) .He decided  he wanted to reduce my synthroid to .175.  I am now experiencing noticeable constipation, feel a bit more sluggish and am frustrated at this dose change.
My recent lab work (August 2009) was as follows:  T4 (free) - 1.6      TSH remains at .05.
My question is whether using just the T4 free and TSH are the best lab tests to measure whether my dose is accurate.
I prefer to remain on the .2mg as I felt fine.

Up until 2005 I was getting the following lab tests ordered, but for some reason my family physician is no longer checking these and instead just does the T4, free and the TSH.

T3 uptake,   T4 total,   T4 Index T4 free, calculated       (NOT the T4,free  test)

What exactly are the best lab tests to get annually to be sure my synthroid dosing is not excessive? (I am no longer worried about any recurring cancer)


Cancel
0 Answers
Page 1 of 1
Your Answer
Avatar universal
Answer
Know how to answer? Tap here to leave your answer...
Answer
Submit Answer
A
A
Blank
Weight Tracker
Weight Tracker
Start Tracking Now
Thyroid Disorders Community Resources
RSS Expert Activity
233488 tn?1310696703
Blank
Marathon Running Done Over Many Yea...
05/15 by John C Hagan III, MD, FACS, FAAOBlank
233488 tn?1310696703
Blank
New Article on Multifocal IOL vs &q...
05/15 by John C Hagan III, MD, FACS, FAAOBlank
748543 tn?1463449675
Blank
TMJ/TMJ The Connection Between Teet...
01/15 by Hamidreza Nassery , DMD, FICOI, FAGD, FICCMOBlank
Top Thyroid Answerers
649848 tn?1424570775
Blank
FL
Avatar universal
Blank
MI
Avatar universal
Blank
Sisters, OR
Avatar universal
Blank
657231 tn?1453836403
Blank
Northern, NJ
Avatar universal
Blank
Calicut, India