Thyroid Test Results : As a result of my GP... - Thyroid UK

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Thyroid Test Results

Eccleston profile image
13 Replies

As a result of my GP pressurising me to reduce Levothyroxine intake I have had tests carried out privately. My weight justifies the dosage of 200mcg daily that is currently prescribed. (1.6mcg/kg) However this dosage results in incredibly low TSH levels. My GP seeks to raise TSH levels.

Results are below:

CHEMISTRY / IMMUNOASSAY

Vitamin D (25 OH) nmol/L 50 - 200 25 L Optimal 75-200 Adequate 50-<75 Insufficient 25 -<50 Deficient <25

Magnesium mmol/L 0.66 - 0.99 0.82

CRP mg/L <5.0 1.63

Ferritin µg/L 30 - 400 106.00 Ferritin is the most useful indicator of iron deficiency, but also an acute phase reactant and may be elevated in malignancy, chronic inflammation, liver damage and iron overload

Serum Folate nmol/L 8.83 - 60.8 17.40

Active B12 pmol/L 37.5 - 150 48

TSH mIU/L 0.27 - 4.20 0.26 L

Free T4 pmol/L 12.0 - 22.0 19.6

Free T3 pmol/L 3.1 - 6.8 3.8

T4 Total nmol/L 66 - 181 121.0

Anti-Thyroglobulin Abs IU/mL <115 24

Anti-Thyroidperoxidase abs IU/mL <34 14.2

Cortisol (Random) nmol/L 73.8 - 507.0 336.0 * 6am - 10am 166 - 507 4pm - 8pm 73.8 - 291

I would be grateful for any comments relating to these results please.

Another thing, my Ferritin, as measured since these results has dropped to 80ug/L

Thanks

Eccleston

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Eccleston
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SlowDragon profile image
SlowDragonAdministrator

Free T4 (fT4) 19.6 pmol/L (12 - 22) 76.0%

Free T3 (fT3) 3.8 pmol/L (3.1 - 6.8) 18.9%

Assuming test was done early morning, ideally before 9am, only drinking water between waking and test and last dose levothyroxine 24=hours before test

Shows TERRIBLE conversion rate of Ft4 to Ft3

For good conversion we need GOOD vitamin levels

Difficult to read vitamin results

Are they

Vitamin D 25nmol

Magnesium mmol/L 0.82

Ferritin µg/L 106.00

Serum Folate nmol/L 17.40 (8.83 - 60.8)

Active B12 pmol/L 48 (37.5 - 150)

Exactly what vitamin supplements are you taking

B12 is extremely low

If you’re not vegetarian or vegan …..You need testing for Pernicious Anaemia

Folate low

ferritin also on low side for a bloke

If vitamin D is 25nmol this is deficient

You need testing for coeliac disease too

So you need to work on improving low vitamin levels as first step

Refuse to reduce dose Levo

SlowDragon profile image
SlowDragonAdministrator

Looking at previous posts

You’re prescribed Metformin?

This lowers TSH

cureus.com/articles/50564-e...

Are you still on propranolol

This slows conversion and uptake of levothyroxine

Restless legs

Look at improving iron and ferritin

Also a daily magnesium supplement in afternoon or evening (at least 4 hours away from levothyroxine)

Eccleston profile image
Eccleston in reply to SlowDragon

Thank you for your comments. Looks as if I have more than one issue to contend with. Prior to the tests I ceased all vitamin supplements for 3 to 4 weeks with a view to gaining a better insight into potential deficiencies.

The results are a cut and paste from the report.

Yes, I am still on propranolol. I have an appointment with a Gastroenterologist next week where this will definitely be raised. Will also raise a question about high TSH affecting the Liver/NAFLD.

I have occasionally taken Magnesium so will do so more often.

Having read that Selenium may be helpful, a daily supplement of Selenium + Vits A, C and E is being taken together with D3 2000 IU. This has been implemented since the tests were taken.

When it comes to Ferritin, I am regularly monitored by my local Haematology team where an optimal value of 100 is used to help control RLS. I am not happy with this 'optimal' value.

For info these are the latest Haematology results: (No ranges have been quoted)

Haemoglobin 135 g/L

White cell count 5 10 to the power of 9 /L

Platelets 142 ---- ditto----

Neutrophils 3 ‐----- ditto ‐----

Ferritin 86 ug/l

B12 528 g/L

And

Folate 10 g/L

If you could spare the time for further guidance please, I shall be eternally grateful.

Thanks

Eccleston

SlowDragon profile image
SlowDragonAdministrator in reply to Eccleston

How much propranolol are you taking per day

When weening off propranolol it must be done incredibly slowly, especially on levothyroxine because it lowers conversion of Ft4 to Ft3 significantly

Dropping 5mg per day…..wait 2-4 weeks before dropping another 5mg etc etc

Propranolol also lowers magnesium

B vitamins

Active B12 pmol/L 48 (37.5 - 150)

Serum B12 528 g/L

Active B12 is very low but serum B12 looks reasonable.

Serum Folate nmol/L 17.40 (8.83 - 60.8)

Folate 10 g/L - no range

Folate on low side.

suggest

active B12 below 70) recommended to be taking a separate B12 supplement

A week later add a separate vitamin B Complex 

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

Highly effective B12 drops

natureprovides.com/products...

Or

B12 sublingual lozenges

uk.iherb.com/pr/jarrow-form...

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

B12 range in U.K. is too wide

Interesting that in this research B12 below 400 is considered inadequate

healthunlocked.com/thyroidu...

Low folate

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

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

Difference between folate and folic acid

healthline.com/nutrition/fo...

B vitamins best taken after breakfast

Igennus B complex popular option. Nice small tablets. Most people only find they need one per day. But a few people find it’s not high enough dose

Post discussing different B complex

healthunlocked.com/thyroidu...

Thorne Basic B recommended vitamin B complex that contains folate, but they are large capsules. (You can tip powder out if can’t swallow capsule) Thorne can be difficult to find at reasonable price, should be around £20-£25. iherb.com often have in stock. Or try ebay

IMPORTANT......If you are taking vitamin B complex, or any supplements containing biotin, remember to stop these 5-7 days before ALL BLOOD TESTS , as biotin can falsely affect test results

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

endocrinenews.endocrine.org...

In week before blood test, when you stop vitamin B complex, you might want to consider taking a separate folate supplement (eg Jarrow methyl folate 400mcg) and continue separate B12

Post discussing how biotin can affect test results

healthunlocked.com/thyroidu...

helvella.blogspot.com/p/hel...

SlowDragon profile image
SlowDragonAdministrator in reply to Eccleston

is vitamin D really 25nmol?

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 when supplementing

Can test via NHS private testing service

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.

One spray = 1000iu

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

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

Vitamin D may prevent Autoimmune disease

newscientist.com/article/23...

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...

Recipe ideas

bbc.co.uk/food/articles/mag...

Interesting article by Dr Malcolm Kendrick on magnesium

drmalcolmkendrick.org/categ...

Vitamin K2 mk7

betterbones.com/bone-nutrit...

healthline.com/nutrition/vi...

SlowDragon profile image
SlowDragonAdministrator in reply to Eccleston

Iron and ferritin

Never supplement iron without doing full iron panel test for anaemia first and retest 3-4 times a year if self supplementing.

It’s possible to have low ferritin but high iron

Test early morning, only water to drink between waking and test. Avoid high iron rich dinner night before test

Stop iron supplements 5-7 days before testing

Medichecks iron panel test

medichecks.com/products/iro...

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-...

healthunlocked.com/thyroidu...

Posts discussing Three Arrows as very effective supplement

Great replies from @FallingInReverse

re ferritin and Three arrows

healthunlocked.com/thyroidu......

healthunlocked.com/thyroidu...

healthunlocked.com/thyroidu...

Great reply by @fallinginreverse

healthunlocked.com/thyroidu...

Iron patches

healthunlocked.com/thyroidu...

Thyroid disease is as much about optimising vitamins as thyroid hormones

healthunlocked.com/thyroidu...

restartmed.com/hypothyroidi...

Post discussing just how long it can take to raise low ferritin

healthunlocked.com/thyroidu...

Iron and thyroid link

healthunlocked.com/thyroidu...

Posts discussing why important to do full iron panel test

healthunlocked.com/thyroidu...

Good iron but low ferritin

healthunlocked.com/thyroidu...

healthunlocked.com/thyroidu...

Chicken livers if iron is good, but ferritin low

healthunlocked.com/thyroidu...

Shellfish and Mussels are excellent source of iron

healthline.com/nutrition/he...

Iron deficiency without anaemia

healthunlocked.com/thyroidu...

Ferritin over 100 to alleviate symptoms

healthunlocked.com/thyroidu...

healthunlocked.com/thyroidu...

Great research article discussing similar…..ferritin over 100 often necessary

ncbi.nlm.nih.gov/pmc/articl...

Low Iron implicated in hypothyroidism

healthunlocked.com/thyroidu...

Really interesting talk on YouTube, link in reply by Humanbean discussing both iron deficiency and towards end how inflammation can also be an issue

healthunlocked.com/thyroidu...

Inflammation affecting ferritin

healthunlocked.com/thyroidu...

Updated reference ranges for top of ferritin range depending upon age

healthunlocked.com/thyroidu...

Thank you for your incredible patience while you have been awaiting the outcome of our ferritin reference range review. We conducted this with Inuvi lab, which has now changed the reference ranges to the following:

Females 18 ≤ age < 40. 30 to 180

Females 40 ≤ age < 50. 30 to 207

Females 50 ≤ age < 60. 30 to 264l

Females Age ≥ 60. 30 to 332

Males 18 ≤ age < 40 30 to 442

Males Age ≥ 40 30 to 518

The lower limits of 30 are by the NICE threshold of <30 for iron deficiency. Our review of Medichecks data has determined the upper limits. This retrospective study used a large dataset of blood test results from 25,425 healthy participants aged 18 to 97 over seven years. This is the most extensive study on ferritin reference ranges, and we hope to achieve journal publication so that these ranges can be applied more widely.

Eccleston profile image
Eccleston in reply to SlowDragon

Thanks for the additional info.Propranolol is prescribed to be taken twice daily at 30mg per dose. I therefore take it at Breakfast and before bed. For the record, Levothyroxine is taken well before any food or other medicines usually 05:00 -06:00hrs.

Vit D is as shown in the test results. An associated comment states 'There is significant Vitamin D insufficiency.'

Low iron and Hypothyroidism-for many years my Ferritin level was in the 'basement ' hovering around 25 but nothing was ever done about it!

Thank you for your interest.

Eccleston

Eccleston profile image
Eccleston in reply to Eccleston

Hi,

I would like to understand how the percentages are arrived at please.

76.0% and 18.9%

Thanks

TiggerMe profile image
TiggerMe in reply to Eccleston

thyroid.chingkerrs.online/

Eccleston profile image
Eccleston in reply to TiggerMe

Thanks.

Eccleston profile image
Eccleston in reply to Eccleston

Update: Visit to Gastroenterologist

Eccleston profile image
Eccleston in reply to Eccleston

Update: Visit to Gastroenterologist

Sorry, this is 2nd attempt.

Broached the subject of Thyroid function and mentioned fT3 and reverse T3. I was told in no uncertain terms that 'It does not work that way!'.

Not a good outcome as the recommendation now to be communicated to my GP is to reduce Levothyroxine to 150mcg daily as TSH is extremely low. Hmmmm.

Of course a Gastroenterologist is not an Endocrineologist so perhaps I shall ignore the recommendation and take it up with my GP at a later date. I think however, the same outlook applies a my Surgery.

Can anyone recommend a good Endocrinologist in the south-east of UK pse., as this will definitely be the next step?

Thanks,

Eccleston

tattybogle profile image
tattybogle

you can use these with GP (to argue the case that TSH of 0.26 is not low enough to increase risks:

healthunlocked.com/thyroidu... useful-evidence-that-tsh-between-0.04-0.4-has-no-increased-risk-to-patients-on-levothyroxine-updated-new-study-does-show-small-risk

healthunlocked.com/thyroidu.... tsh-is-just-the-opinion-of-your-pituitary-about-your-dose-but-your-pituitarys-opinion-is-a-bit-warped-once-you-take-thyroid-hormone.

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