Latest blood tests: Hi all again. I have just... - Thyroid UK

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Latest blood tests

mountainice profile image
8 Replies

Hi all again. I have just collected my latest blood tests for FBC. I didn't know she was repeating some thyroid tests, so I would your opinion please.

Serum free T4 13 pmol/L (9.0 - 25.0)

Serum TSH 3.5 miu/L (0.3 - 5.0)

Serum free triiodothyronine 4.3 pmol/L (3.5 - 6.5) Is this free T3 ?

I am not on any thyroid medication.

Thanks.

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mountainice
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SlowDragon profile image
SlowDragonAdministrator

Looking at previous posts....As you have B12 injections and numerous hypothyroid symptoms you need FULL Thyroid and vitamin testing

Low vitamin levels are extremely common when hypothyroid

Insomnia can be low FT3 and/or low vitamin D

Low B vitamins are common with low vitamin D

drgominak.com/vitamin-d/

drgominak.com/sleep/vitamin...

For full Thyroid evaluation you need TSH, FT4 and FT3 plus both TPO and TG thyroid antibodies tested. Also extremely important to test vitamin D, folate, ferritin and B12

Low vitamin levels are extremely common, especially if Thyroid antibodies are raised

Recommended on here that all thyroid blood tests should ideally be done as early as possible in morning and fasting. This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip, best not mentioned to GP or phlebotomist)

Private tests are available. Thousands on here forced to do this as NHS often refuses to test FT3 or antibodies or all vitamins

thyroiduk.org.uk/tuk/testin...

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 special offers, Medichecks usually have offers on Thursdays, Blue Horizon its more random

If antibodies are high this is Hashimoto's, (also known by medics here in UK more commonly as autoimmune thyroid disease).

About 90% of all hypothyroidism in Uk is due to Hashimoto's.

Low vitamins are especially common with Hashimoto's. Food intolerances are very common too, especially gluten.

So it's important to get TPO and TG thyroid antibodies tested at least once .

Link about thyroid blood tests

thyroiduk.org/tuk/testing/t...

Link about antibodies and Hashimoto's

thyroiduk.org.uk/tuk/about_...

thyroiduk.org.uk/tuk/about_...

List of hypothyroid symptoms

thyroiduk.org.uk/tuk/about_...

mountainice profile image
mountainice in reply toSlowDragon

Thank you so much for fast reply. I am going to the doctor this morning about bowels as have had problems a long time but getting worse. Not sure if it is a numb feeling like I had in my feet before B12d diagnosis, but the consequence is bowel evacuates a little bit all through the day.

Re my D, I haven't had it tested since last summer I don't think, but it usually stays up to 200 but I supplement 10,000 iu every day along with co-factors, so I should think my levels are still up. Am taking a B complex now, since the last 4 weeks.

I had TPO before Christmas but not since and doc won't do TgAb - said she can't.

I am on monthly B12 jabs so no point testing, but I am still wondering if enough. I thought about Medichecks but read people having trouble with finger-prick test and one saying results not consistent, not sure if that is correct, seeing as many people recommend Medichecks.

I feel unwell generally, just kind of miserable, and my state of mind isn't right at the moment - I had a full-scale panic and screaming attack 2 weeks ago, not had that since hospitalised 24 years ago. Better get to gp now. Thank you.

SlowDragon profile image
SlowDragonAdministrator in reply tomountainice

Medichecks There’s an option to pay £25 extra for private blood draw at local to you clinic

Slightly more via Blue Horizon

Or another option is private nurse to your house

If testing TSH, FT4 and FT3 then aiming to get tested as early as possible in morning and fasting

If just testing antibodies and vitamins timing is not important

When taking any vitamin B complex remember to stop any supplements with biotin in a week before any blood testing as biotin can falsely affect test results

humanbean profile image
humanbean in reply toSlowDragon

Is that £25 cost the same for all clinics that people can choose with Medichecks?

SlowDragon profile image
SlowDragonAdministrator in reply tohumanbean

As far as I am aware, yes it's same cost at any private clinic

I did enquire at private hospital where I get mine done, how much it would cost to pay for private blood draw if I did it direct. Same cost, but lots of hassle

mountainice profile image
mountainice in reply toSlowDragon

Yes, I did see you could have a blood draw, don't know where the nearest is to me, but other people seem successful with finger-prick tests, perhaps I just read a not-so-good post! Saw doctor today, a different one but she was only concerned with my crying and anxiety, not what could be the cause of it. Thyroid tests fine she said. I mentioned B12 and she said no-one should be injecting every day. The worst thing is she prescribed Sertraline. I resisted to start with but kind of got persuaded by her as I was in an anxiety state and didn't know how to explain how I felt and they obviously haven't listened to my symptoms from previously. One doctor who did listen and I have higher hopes I can't get to see yet. I may keep trying online till I see an appointment, but in the meantime this doctor has referred me to one of the other doctors I saw recently for an appointment in two weeks' time. My doctors are part-time and share, today's one was another one. I am annoyed that I didn't realise I was having a thyroid test a week ago as the test was at 11 in the morning, obviously not fasting and not early. Yes, the B complex has biotin - I don't know what that is and why it affects results.

SlowDragon profile image
SlowDragonAdministrator in reply tomountainice

Biotin is vitamin B7. It's in most vitamin B complex

It's used in some assay test machines and if taking biotin supplements it can falsely affect blood test results

As patients have no idea which machines are affected, we need to stop any supplements with biotin in a week before testing

endo.confex.com/endo/2016en...

endocrinenews.endocrine.org...

mountainice profile image
mountainice in reply toSlowDragon

Thank you, I didn't know that. my B complex has 50 ug which is the same as 50 microgram I think? Should I choose a B complex with no biotin, if there is such a thing. Also, if I decide to do my own private blood tests I should leave off the B complex, but for how long would you say? I feel at a loss and am not very good at challenging doctors, only because I can't remember the information to make a cogent argument. Today didn't help as I was crying and not coherent a lot of the time, and when I tried to be I was batted down.

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