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A member asked:
Ths level is 477 / had thyroid cancer 1991/ quit taking synthroid (thyroxine) approx. 9 mo ago / is 477 dangerously high?
A doctor has provided 1 answer
Simple answer: YES! Why did you stop? Please have your doctor check all your current thyroid labs and make plans to correct things. Your T4 and T3 (liothyronine) are probably quite low. Do not delay. If your T4 and T3 (liothyronine) are normal please have your doctor refer you to a thyroid specialist.
Answered 1/7/2015
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