When to take the last dose of T3 before a blood test?

Discussion in 'Blood Work, Labs' started by Padmaaa, Sep 28, 2013.

  1. Padmaaa

    Padmaaa Member

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    If I will have a thyroid blood tests done, let's say on Monday morning, when can I take my last dose of T3 before the blood test?

    Currently I'm taking a combination of T4 and T3 at least 6 times a day, the last one around 9-10pm.

    Thanks for the help.
     
  2. kiran

    kiran Member

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    I guess it depends on the purpose for the test.

    If you want to check your current TSH, T3, T4 etc, then keep taking it.
    If you want to show a doctor that you have a high TSH, then stop a day or two before.
    If you want to see how your thyroid does without supplemental meds, then stop about a week or two before the test.
     
  3. OP
    Padmaaa

    Padmaaa Member

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    kiran, You helped me a lot. Thank you :)
     
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