Are these results reliable considering that I d... - Thyroid UK

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Are these results reliable considering that I did not cease taking B complex a week before the blood test?

DizzyD profile image
2 Replies

Hi all here are the blood results for my thyroid blood test on 15 November 21. Sample was taken at 11 30 am. Did not take any thyroid meds on day of test only drank water. Unfortunately, I did not stop taking B complex a week before the blood test.

TSH 0.5. 0.27 - 4.2

T4 19.5 12 - 22. (75%)

FT3 4.9 3.1 - 6.8. (48.65%)

Thyroid medication dosage: Alternate days 75/50 levo. Plus 1\2 of 30mcg EFRA daily. Have had a thyroidectomy.

Question is: are these results reliable enough (considering the biotin issue that can shew results) to warrant either an increase or decrease of either levo or NDT?

Based on the numbers what thyroid medication should i increase or decrease?

Any feedback would be greatly appreciated.

Have a rewarding day.

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DizzyD
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SlowDragon profile image
SlowDragonAdministrator

So how long before test was last dose of Efra?

And how long before was last dose levothyroxine?

Day before test you should take levothyroxine 24 hours before test

Split NDT and take last 1/2 or 1/3rd daily dose approx 8-12 hours before test

When were vitamin D, folate, ferritin and B12 last tested

DizzyD profile image
DizzyD in reply to SlowDragon

Last dose of EFRA and levo was the previous morning.

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