Blood test results. : Copy of blood test results... - Thyroid UK

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Blood test results.

Baddels profile image
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Copy of blood test results. Are levels ok.

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Baddels
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shaws profile image
shawsAdministrator

Your FT4 is 1 point above the top of the range. Did you allow a gap of 24 hours between your last dose and the test and take it afterwards. Your FT3 is fine.

Baddels profile image
Baddels in reply to shaws

No I took my thyroxine just before my blood test.

shaws profile image
shawsAdministrator in reply to Baddels

That's why your results are skewed. The following is the procedure, to get the best possible results and stop doctors adjusting the dose(s) unnecessarily.

Levothyroxine has to be taken, usually when we get up with one full glass of water and wait an hour before eating.

Or you can chooseat bedtime dose as long as there's a long enough gap between eating and dose. If taking a bedtime dose, you miss it if having a blood test next a.m. and take after test and night dose as usual the same day.

If taking levo in the morning, you allow a 24 hour gap between your dose and the blood test and take levo after the test.

This is more beneficial for us, the patient.

shaws profile image
shawsAdministrator

If your doctor wants to adjust your dose, tell him you've made a mistake and can he wait till next blood tests are due before adjusting dose as it will be done properly next time. I am not saying doctors are aware that if we take a dose just before a blood test that the results will be skewed (probably not).

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