Hi, so I’ve posted a couple of questions but didn’t have an up to date set of results. I received them back today.
TSH 0.41mIU/L. Range 0.27 - 4.2
Free T3 4.7pmol/L. Range 3.1 - 6
Free Thyroxine 17.9pmol/L Range 12 - 22
THYROGLOBULIN ANTIBODIES 48.3kIU/L Range 0 - 115
THYROID PEROXIDASE ANTIBODIES 225.7kIU/L Range 0 - 34
FOLATE - SERUM 25.4nmol/L Range 8.83 - 60.8
VITAMIN B12 - ACTIVE 48pmol/L Range 37.5 - 188
VITAMIN D 150nmol/L Range 50 - 250
FERRITIN 88ug/L Range 30 - 150
I’m disappointed in my ferratin and B12 and am being a lot more strict with my supplements now. Also gutted about my antibodies as they had been falling steadily but have risen by almost 100 since my last test.
I’m never too sure about T3 levels? Any advice or insights as to any areas I should concentrate on would be appreciated. TIA.
Written by
EllsBells591
To view profiles and participate in discussions please or .
* Nothing to eat or drink except water before the test
* Last dose of Levo 24 hours before the test
* No biotin or any supplement containing biotin (eg B Complex) for 3-7 days before the test
If so then if you feel symptomatic there is room for an increase in your Levo as your FT4 is 59% through range and FT3 is 43.24% through range if the range is actually 3.1-6.8, but if it is actually 3.1-6 then it's 55.17% through range.
Antibodies are going to fluctuate, that's the nature of Hashi's, so not much you can do about that really.
FOLATE - SERUM 25.4nmol/L Range 8.83 - 60.8
Folate is recommended to be at least half way through range so that would be about 35 plus with that range, you might want to improve this level.
VITAMIN B12 - ACTIVE 48pmol/L Range 37.5 - 188
This is very low. Active B12 below 70 suggests testing for B12 deficiency according to Viapath at St Thomas' Hospital:
If you do then list them to discuss with your GP and ask for testing for B12 deficiency and Pernicious Anaemia. Do not take any B12 supplements or folic acid/folate/B Complex supplements before further testing of B12 as this will mask signs of B12 deficiency and skew results and if you have B12 deficiency and it is not detected and treated then this could affect your nervous system. B12 deficiency should be treated before starting folic acid because folic acid can sometimes improve your symptoms so much that is masks B12 deficiency.
VITAMIN D 150nmol/L Range 50 - 250
This is a good level and in accordance with the recommendation of the Vit D Council, Vit D Socieity and Grassroots Health who all recommend a level of 100-150nmol/L.
I’ve been out today and actually still away from home so can’t check the previous B12 right now. Thank you so much for the really comprehensive reply and links. Fascinating re the B complex results - I do have some of those symptoms, but put them down to hypothyroidism.
* Tinnitus
* Restless legs (on and off)
* balance issues, nothing awful - I don’t fall but do walk into things/over balance
* I’ve always had a weird thing with pain, I went to the dentist ages ago and told them I had a pain on the right side of my jaw, but they found an abscess on the left side
* palpitations
* Constipation
* Tired
* forgetting words/names
I see medichecks does the test you mention. I doubt my Doctor would approve it 🫤
Hard to say, we are all different, there are no hard and fast rules. Generally someone on Levo only would feel best when FT4 and FT3 are in the upper part of their ranges, but nobody can say where you will feel best because your optimal levels will likely be different from someone else's optimal levels.
With serum B12 result below 500, (Or active B12 below 70) recommended to be taking a separate B12 supplement and add a separate vitamin B Complex after a week
Then once your serum B12 is over 500 (or Active B12 level has reached 70), you may be able to reduce then stop the B12 and just carry on with the B Complex.
If Vegetarian or vegan likely to need ongoing separate B12 few times a week
IMPORTANT......If you are taking vitamin B complex, or any supplements containing biotin, remember to stop these 7 days before ALL BLOOD TESTS , as biotin can falsely affect test results
In week before blood test, when you stop vitamin B complex, you might want to consider taking a separate methyl folate supplement and continue separate B12
How other member saw how effective improving low B vitamins has been
These are not optimal results. I would expect FT4 to be in the top quarter of the range. Your TSH is at .41 though and you will struggle to get GP to raise your dose.
Low B12 often results in a low TSH, so work hard on your B12 and see if you can get GP to retest in a few months time.
I don’t think I’ve read that, before, that low B12 can lower TSH. Is there a reference for that or an explanation? Might be useful ammo for the GP at some future date.
Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.
Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.
Quick update on bloods - happy with analysis but posting for interest/comparison - also CRP info?
Latest blood test results 
Blood test results - anxiety 
Thyroid function blood test results. Please help me understand these. 
