Thyroid UK
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Still Confused

Hi all

I posted 12 days ago re still feeling unwell even on 125mcg Levothyroxine. I obtained my last blood results (December 2016) they are:

TSH 0.89 (0.27-4.2)

T4 18.8 (12-22) no other tests on thyroid hormones.


Serum 4.8 Serum HDL 1.7 Serum Lipo Protein 3.1

HDL/Ratio 2.8

I am assured all is 'normal' but it was suggested a full blood count was taken as I had not had one for a couple of years. Is this the way forward? Any comments gratefully received.

6 Replies

The way forward is testing FT3, antibodies - both TPO and Tg - and nutrients : vit D, vit B12, folate and ferritin. :)


If you can't get full thyroid and vitamin testing from GP

Medichecks Thyroid plus ultra vitamin or Blue Horizon Thyroid plus eleven are the most popular choice. DIY finger prick test or option to pay extra for private blood draw. Both companies often have money off offers. DIY finger prick test or option to pay extra for private blood draw. Both companies often have money off offers

All thyroid tests should be done as early as possible in morning and fasting and don't take Levo in the 24 hours prior to test, delay and take straight after. This gives highest TSH and most consistent results

If you are taking vitamin B complex, or any supplements containing biotin, remember to stop these 3-5 days before any blood tests, as biotin can falsely affect test results


Thanks SlowDragon I will bear all this in mind if I get nowhere with my GP


So were you on 125mcg at the time of those blood tests? If not what were you on?


Hi Bev no I was on 150mcg, the practitioner pharmacist phoned me to reduce the dosage - they were concerned they were over medicating.



The thyroid results you have posted do not even hint at over-dosing.

The other question (and you might well have forgotten since 2016!) is how long the gap was between your last dose and the blood being drawn for testing. Certainly in the first few hours the FT4 value can be very much higher due to the recently-swallowed tablet. As well as TSH usually being higher first thing in the day and reducing through to the afternoon/evening.


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