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)
Copyright 1994-2016 MedHelp International. All rights reserved.
MedHelp is a division of Aptus Health.
This site complies with the HONcode standard for trustworthy health information.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.