Advice needed after blood test: Hi all, Thank you... - Thyroid UK

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Advice needed after blood test

northandsouth profile image
8 Replies

Hi all,

Thank you for the great information and advice you provide on the forum. I’ve learnt so much by reading the posts and replies here, and I’d like to ask for your advice on my recent blood test results.

I am female, live in the UK, and was 62 when diagnosed with autoimmune hypothyroidism in November 2019. Before diagnosis I’d had many hypo symptoms - over at least three years - and it was awful fatigue, being thirsty and putting on weight for no reason that finally got me to the GP - I knew nothing about the thyroid and thought it might be diabetes.

I had a blood blood test which showed T4 was <1.3 (range 12-22 pmol/L) and TSH 110 (range 0.27-4.20 mlU/L), was put on 100 mcg of Levothyroxine, and felt a lot better. After a few months, dosage was reduced to 75 mcg, based on TSH and T4, and how I felt - including palpitations. Over time I became increasingly fatigued again, and this March the GP agreed I should up the dose to average 87.5 mcg, based on my weight.

Until recently I’ve felt somewhat better - almost normal! - but now fatigue has returned - with one very bad day - plus palpitations, puffy eyes and neck, and tingling hands and feet.

I’ve finally taken a Medichecks advanced thyroid function blood test. The test was at eight in the morning, before breakfast, and 24 hours after last dose of Levo, and I haven’t been taking any supplements. I’m attaching a pic of the test results. Medichecks advise taking vitamin D, and I wonder if B12 would be a good idea too - I worry about B12 a bit because my Dad had pernicious anaemia. I wonder too if I should be increasing Levo to100 mcg, based on the TSH, FT4 and FT3 levels and continuing fatigue, or if the tendency to have palpitations goes against this.

Thank you for reading all this, and I’d be grateful for your comments and advice.

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SlowDragon profile image
SlowDragonAdministrator

Welcome to the forum

First step is to improve low vitamin levels

All vitamins are slightly low, but obviously vitamin D definitely needs improving to at least around 80nmol and around 100nmol maybe better

Low vitamin D

GP should prescribe 1600iu everyday for 6 months

But with autoimmune thyroid disease you are likely to need higher dose than this

NHS Guidelines on dose vitamin D required

ouh.nhs.uk/osteoporosis/use...

GP will often only prescribe to bring vitamin D levels to 50nmol. Some areas will prescribe to bring levels to 75nmol or even 80nmol

leedsformulary.nhs.uk/docs/...

GP should advise on self supplementing if over 50nmol, but under 75nmol (but they rarely do)

mm.wirral.nhs.uk/document_u...

But with Hashimoto’s, improving to around 80nmol or 100nmol by self supplementing may be better

pubmed.ncbi.nlm.nih.gov/218...

vitamindsociety.org/pdf/Vit...

Once you Improve level, very likely you will need on going maintenance dose to keep it there.

Test twice yearly via NHS

vitamindtest.org.uk

Vitamin D mouth spray by Better You is very effective as it avoids poor gut function. There’s a version made that also contains vitamin K2 Mk7

amazon.co.uk/BetterYou-Dlux...

It’s trial and error what dose we need, with hashimoto’s we frequently need higher dose than average

Calculator for working out dose you may need to bring level to 40ng/ml = 100nmol

grassrootshealth.net/projec...

Government recommends everyone supplement October to April

gov.uk/government/news/phe-...

Taking too much vitamin D is not a good idea

chriskresser.com/vitamin-d-...

Web links about taking important cofactors - magnesium and Vit K2-MK7

Magnesium best taken in the afternoon or evening, but must be four hours away from levothyroxine

betterbones.com/bone-nutrit...

medicalnewstoday.com/articl...

livescience.com/61866-magne...

sciencedaily.com/releases/2...

Vitamin K2 mk7

betterbones.com/bone-nutrit...

healthline.com/nutrition/vi...

2 good videos on magnesium

healthunlocked.com/thyroidu...

Vitamin D and Covid

Notice how much vitamin D many of these medics are taking

vitamind4all.org/letter.pdf

northandsouth profile image
northandsouth in reply toSlowDragon

Thank you for replying SlowDragon. It’s good to know what level of vitamin D to aim for. I didn’t know about vitamin D spray, and hadn’t really appreciated the value of taking magnesium as well as vitamin K. I can plan my vitamin D improvement campaign properly now🙂.

SlowDragon profile image
SlowDragonAdministrator in reply tonorthandsouth

B12 and folate are ok, but could be better

supplementing a good quality daily vitamin B complex, one with folate in (not folic acid) may be beneficial.

This can help keep all B vitamins in balance and will help improve B12 levels too

Difference between folate and folic acid

chriskresser.com/folate-vs-...

Many Hashimoto’s patients have MTHFR gene variation and can have trouble processing folic acid.

thyroidpharmacist.com/artic...

B vitamins best taken after breakfast

Thorne Basic B is an option that contain folate, but is large capsule. You can tip powder out if can’t swallow capsule

Igennus Super B is good quality and cheap vitamin B complex. Contains folate. Full dose is two tablets per day. Many/most people may only need one tablet per day. Certainly only start on one per day (or even half tablet per day for first couple of weeks)

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

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

endocrinenews.endocrine.org...

Low B12 symptoms

b12deficiency.info/signs-an...

If serum B12 result below 500, (Or active B12 below 70) recommended to be taking a B12 supplement as well as a B Complex (to balance all the B vitamins) initially for first 2-4 months, then once your serum B12 is over 500 (or Active B12 level has reached 70), stop the B12 and just carry on with the B Complex.

B12 sublingual lozenges

amazon.co.uk/Jarrow-Methylc...

cytoplan.co.uk/shop-by-prod...

healthunlocked.com/thyroidu...

SlowDragon profile image
SlowDragonAdministrator

Also ferritin Look at increasing iron rich foods in diet

Eating iron rich foods like liver or liver pate once a week plus other red meat, pumpkin seeds and dark chocolate, plus daily orange juice or other vitamin C rich drink can help improve iron absorption

List of iron rich foods

dailyiron.net

Links about iron and ferritin

irondisorders.org/too-littl...

davidg170.sg-host.com/wp-co...

Great in-depth article on low ferritin

oatext.com/iron-deficiency-...

drhedberg.com/ferritin-hypo...

This is interesting because I have noticed that many patients with Hashimoto’s disease and hypothyroidism, start to feel worse when their ferritin drops below 80 and usually there is hair loss when it drops below 50.

SlowDragon profile image
SlowDragonAdministrator

Ft4 is only 41% through range Ft3 only 33% through range

Helpful calculator for working out percentage through range

chorobytarczycy.eu/kalkulator

Your results suggest you are under medicated and need small increase in dose

Most people when adequately treated will have Ft4 and Ft3 at least 50-60% through range

Perhaps try increasing to 100mcg daily

Many people find Levothyroxine brands are not interchangeable.

Many patients do NOT get on well with Teva brand of Levothyroxine. Teva contains mannitol as a filler, which seems to be possible cause of problems. Teva is the only brand that makes 75mcg tablet. So if avoiding Teva for 75mcg dose ask for 25mcg to add to 50mcg or just extra 50mcg tablets to cut in half

But for some people (usually if lactose intolerant, Teva is by far the best option)

Teva, Aristo and Glenmark are the only lactose free tablets

Most easily available (and often most easily tolerated) are Mercury Pharma or Accord

Accord is also boxed as Almus via Boots, and Northstar 50mcg and 100mcg via Lloyds ....but doesn’t make 25mcg tablets

beware 25mcg Northstar is Teva

List of different brands available in U.K.

thyroiduk.org/if-you-are-hy...

Teva poll

healthunlocked.com/thyroidu...

Once you find a brand that suits you, best to make sure to only get that one at each prescription.

Watch out for brand change when dose is increased or at repeat prescription.

New guidelines for GP if you find it difficult/impossible to change brands

healthunlocked.com/thyroidu...

academic.oup.com/jcem/artic...

Physicians should: 1) alert patients that preparations may be switched at the pharmacy; 2) encourage patients to ask to remain on the same preparation at every pharmacy refill; and 3) make sure patients understand the need to have their TSH retested and the potential for dosing readjusted every time their LT4 preparation is switched (18).

Levothyroxine is an extremely fussy hormone and should always be taken on an empty stomach and then nothing apart from water for at least an hour after

Many people take Levothyroxine soon after waking, but it may be more convenient and perhaps more effective taken at bedtime

verywellhealth.com/best-tim...

Some people also find it better to split dose - half in morning and half at bedtime

No other medication or supplements at same as Levothyroxine, leave at least 2 hour gap.

Some like iron, calcium, magnesium, HRT, omeprazole or vitamin D should be four hours away

(Time gap doesn't apply to Vitamin D mouth spray)

If you normally take levothyroxine at bedtime/in night ...adjust timings as follows prior to blood test

If testing Monday morning, delay Saturday evening dose levothyroxine until Sunday morning. Delay Sunday evening dose levothyroxine until after blood test on Monday morning. Take Monday evening dose levothyroxine as per normal

REMEMBER.....very important....stop taking any supplements that contain biotin a week before ALL BLOOD TESTS as biotin can falsely affect test results - eg vitamin B complex

northandsouth profile image
northandsouth in reply toSlowDragon

SlowDragon, Thanks again 🙂🙂🙂. I’m carefully reading through your advice and following the links and will reply properly asap.

northandsouth profile image
northandsouth in reply toSlowDragon

Thanks SlowDragon, You’ve given me the confidence to increase Levo to 100mcg. I’ve also ordered D3 with K2 spray, the super B complex, and a magnesium complex. I’ll make sure to get more iron into my diet too. Thanks again for being here, and I hope you and all the forum stalwarts have a lovely summer!

SlowDragon profile image
SlowDragonAdministrator in reply tonorthandsouth

Retest thyroid and vitamin levels 6-10 weeks after any dose change or brand change in levothyroxine

Come back with new post once you get results

Remember to stop taking any supplements that contain biotin a week before ALL BLOOD TESTS as biotin can falsely affect test results

Magnesium supplements must be minimum 4 hours away from levothyroxine

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