I too take synthroid and get tested at least every 6 months. Do you know your baseline TSH level prior to radiation? If so, you should attempt to get as close to it as possible. There is a very wide range of 'normal' for TSH levels and my doctor pays no attention as long as it is within that wide range. I ask for the reports my self and if I am teetering away from MY normal 2.5, I have the dosage adjusted. If you see your primary on a regular basis, he should be able to handle this.

Take care,
Eileen


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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