I am due to have bloods taken this week and I am not sure whether or not to take my Thyroxine before test? I usually take my medication at about 7am and my appointment is at 8.30am. I think I have read somewhere that it should not be taken before blood test. Thanks in anticipation,
Taking medication prior to blood test - Thyroid UK
Taking medication prior to blood test
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basil-567
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4 Replies
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Basil_567,
Take it after your blood test. Taking it before can skew the FT4 result.
Don't take your meds within 24 hrs of a blood test wait till after.
Many thanks and blessings Glenisrose
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