Optimum thyroid levels? : So I went to the drs... - Thyroid UK

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Optimum thyroid levels?

AvaBlake profile image
13 Replies

So I went to the drs with a range of symptoms which I thought were unconnected.

Numbness in fingers and toes

Constipation

Mental fog/processing difficulties

She suggested a thyroid test. Last time it was checked was last summer and the results were

Free T4 - 16.8

TSH - 1.24

This time it was

Free T4 - 12.3

TSH - 0.71

She said these were low but not enough to medicate. But I’ve heard that sometimes what’s considered within ‘normal range’ isn’t actually the same as the ‘optimal range’

Can anyone shed any light on it all? Is there anything I can do to help myself?

Thanks

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AvaBlake profile image
AvaBlake
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13 Replies
SeasideSusie profile image
SeasideSusieRemembering

AvaBlake

Can you please add the reference ranges for your results, these vary from lab to lab so to be able to interpret your results we need the ranges from your lab.

Do you remember if both of these tests were done under the same conditions? We always advise an early morning test after an overnight fast, drinking water only. Delay breakfast and tea, coffee, etc, until after the test.

AvaBlake profile image
AvaBlake

So fully it says

Serum free T4 (XaERr)

Result 12.3 pmol/L [12.0-22.0]

Serum TSH level (XaELV)

Result 0.71mu/L [0.27-4.2]

Both taken midday ish and having eaten. There was no talk of fasting.

Also in case it’s relevant

Serum total 25-hydroxy vit D level (Xabo0)

Result 81 nmol/L [50.0-120.0]

Red blood cell count - below range

Result 3.75 10*12/L [3.8-4.8]

Harmatocrit - below range

0.348 [0.35-0.47]

I supplement daily with Vit D and Vit B12 every day though

vocalEK profile image
vocalEK

"A low hematocrit with low RBC count and low hemoglobin indicates anemia. Some causes include: ... Bone marrow disorders such as aplastic anemia, myelodysplastic syndrome, or cancers such as leukemia, lymphoma, multiple myeloma, or other cancers that spread to the marrow. Jun 23, 2015

Hematocrit - Lab Tests Online" labtestsonline.org/tests/he...

Before you panic, keep in mind that nutritional deficiencies are a major cause of anemia, such as folate, B12, and iron. You need to have all these tested, and ask for a full iron panel.

AvaBlake profile image
AvaBlake in reply to vocalEK

Thank you, yes I will ask thank you. Interestingly I do supplement with B12 and Iron already

SlowDragon profile image
SlowDragonAdministrator

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

Ask GP to test vitamins, Thyroid antibodies and full iron panel for Anaemia

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

AvaBlake profile image
AvaBlake in reply to SlowDragon

Thank you so much. There’s a long reply below but also wondering what drs reactions are to medicheck test results? Do they take them seriously?

AvaBlake profile image
AvaBlake

Thank you all for your help.

Reading up on it it does seem the central hypothyroidism or folate deficiency anaemia could be an option, both causing the symptoms that I’m experiencing. Are they common together? Or is it usually one or the other?

As I said in my second post I take a whole collection of supplements. So daily I take vitamins A, B1, B2, B3, B6, B12, C, D, K1, magnesium, iron, folic acid and others.

Will this skew my results? Does it mean having low RBC and Haemoglobin despite taking all those supplements is actually more concerning? If I ask for a screening of these things is it best to stop supplementing for a while before hand?

Looking again my haemoglobin concentration was also the low end of “normal” at 119g/L [115-165]

Not that I really know what that means.

Thanks again though, I really appreciate the help

SlowDragon profile image
SlowDragonAdministrator in reply to AvaBlake

You need FULL Thyroid testing. That's TSH, FT4 and FT3 plus BOTH TPO and TG thyroid specialists

Consider the cause of low vitamins and need to take supplements

What's your diet like?

If it's good, looking at low stomach acid and/or gluten intolerance and/or leaky gut as possible issues

All these are common if thyroid antibodies are high, so getting Thyroid antibodies tested is likely first step

If you are taking vitamin B complex, or any supplements containing biotin, remember to stop these 7 days before any blood tests, as biotin can falsely affect test results

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

endocrinenews.endocrine.org...

AvaBlake profile image
AvaBlake in reply to SlowDragon

Ohhh I’ve been taking biotin for that exact reason...balls. My levels were normal before I started taking it each day and have dropped since. If it’s biotin causing it would that still cause the symptoms?

I didn’t take any supplements with it in yesterday and won’t for a week then do the Medicare test. I think that’s a good next step?

My diet is really good, balanced and clean, no gluten, sugar, caffeine or processed foods.

AvaBlake profile image
AvaBlake in reply to SlowDragon

Just wanted to say that since stopping biotin all my symptoms have ceased. I can’t believe it. Obviously I’m thrilled but also frustrated that they’re unregulated and don’t come with warnings of possible side effects!

SlowDragon profile image
SlowDragonAdministrator in reply to AvaBlake

It's advised to stop biotin, only because it may affect the way the blood test works and give an unreliable result

It's unlikely, but not obviously impossible, that stopping biotin has improved your symptoms

Your FT4 is very low

Would recommend FULL Thyroid and vitamin testing

AvaBlake profile image
AvaBlake in reply to SlowDragon

So thank you, I’m so grateful to you for sharing that.

AvaBlake profile image
AvaBlake

Hi, thanks so much. I couldn’t find any info about central hypothyroidism on the NHS site. Do you have a link at all?

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