Patient Advocate (old timer, 2000 posts) Joined: May 2002 Posts: 2,152 | They should have done a full thyroid panel BEFORE you had radiation so you should know what your pre-radiation TSH, T3 and T4 levels were. Since they removed part of my thyroid when I had the larygectomy and I'm now on synthroid, I try to keep my keep my TSH level as close to my old level as possible which was 2.5-2.8. I'd keep my new normal as close to my old normal assuming you are having no symptoms.
Take care, Eileen
---------------------- Aug 1997 unknown primary, Stage III mets to 1 lymph node in neck; rt ND, 36 XRT rad Aug 2001 tiny tumor on larynx, Stage I total laryngectomy; left ND June 5, 2010 dx early stage breast cancer June 9, 2011 SCC 1.5 cm hypo pharynx, 70% P-16 positive, no mets, Stage I
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