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how long should i go off levothyroxine?

Hello again... I just want to ask how long should I go off/withdrawal from my levothyroxine medication (125 mg thyrax) before my tg level blood test as a routine  check of any recurring papillary CA? I am from the Phillippines and thyrogen injections here is very costly and i cant afford it.  My endo said I have to be off thyroid drugs for 2 weeks before the tg blood test.  Is that enough to make me hypothyroid?

How long should i go off levothyroxine.  I am scheduled for my tg level 3 mos from now.  Any inputs is very much appreciated
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Avatar universal
When I went off thyroid medications for two (2) weeks my TSH was still 2.50.. Would 3 weeks off ok? thank you dr, lupo
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97953 tn?1440865392
MEDICAL PROFESSIONAL
2-3 weeks as usual.  Ideally we get a TSH greater than 25 in this situation.
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