Latest results- low TSH, Ft4 and low Ft3 - Thyroid UK

Thyroid UK

140,948 members166,081 posts

Latest results- low TSH, Ft4 and low Ft3

marielp612 profile image
23 Replies

Hello wonderful Thyroid UK people. I've posted a couple of times and your response was great. I just got results of yesterday's labs and trying to prepare for a conversation with my Dr. I'm afraid he will ignore the lower Ft3 and reduce the levo. Any thoughts are greatly appreciated.

2/4/19

TSH .75 (.40-4.40) previous 2.09, 2.73, 1.75

Ft4 1.3 (.8 - 1.8)

Ft3 2.5 (2.3 - 4.2) previous 2.65

Is this hypothyroidism or possibly something else? Thank you so much!

Written by
marielp612 profile image
marielp612
To view profiles and participate in discussions please or .
Read more about...
23 Replies
soupybp profile image
soupybp

I am sure that the great minds are going to ask you to confirm your current levo dose as well as confirm if you tested in am, no food/drink, 24 hours after last dose of levo. They will also ask you to confirm what, if anything, you are supplementing and dose :)

marielp612 profile image
marielp612 in reply tosoupybp

Thanks for the reminder soupybp. I've been taking 50 mcg of levo since November 2018.

I had the test before my levo that morning, and fasting. Also supplement with D3, B12 and Magnesium which I stopped 2 weeks before the test.

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

As you have fibromyalgia this is often linked to low FT3

Good you did test as recommended

I.e. as early as possible in morning and fasting. Do not take Levothyroxine dose in the 24 hours prior to test, delay and take immediately after blood draw. This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip, best not mentioned to GP or phlebotomist)

Ask GP to test vitamins and antibodies

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_...

Understanding Hashimoto's

hashimotoshealing.com/under...

List of hypothyroid symptoms

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

marielp612 profile image
marielp612 in reply toSlowDragon

Thanks SlowDragon. I haven't had those tested recently but a few years ago all was normal. I'm particularly concerned that my tsh dropped from 1.75 to .75 while my ft3 also dropped from 2.65 to 2.5. My dr will give me a tough time and probably reduce my levo. I'm wondering how best to ask for either NDT or possible T3?

SlowDragon profile image
SlowDragonAdministrator in reply tomarielp612

TSH should ideally be between 0.4-1.5 on just Levothyroxine

New NHS England Liothyronine guidelines November 2018 clearly state on pages 8 & 12 that TSH should be between 0.4-1.5 when treated with just Levothyroxine

Note that it says test should be in morning BEFORE taking Levothyroxine

sps.nhs.uk/wp-content/uploa...

If GP tries to reduce dose, instead request referral to endocrinologist of your choice

Email Dionne at Thyroid Uk for list of recommended thyroid specialists

Essential to test vitamin levels and thyroid antibodies,ask GP, but do privately if necessary

Vitamin D should be over 80nmol, many find over 100nmol is better

B12 and folate near top of range

Ferritin at least half way in range

Frequently they are too low, but may still be just within range

Getting vitamins optimal is first step

TSH may then rise

If antibodies are high trying strictly gluten free diet

If after this TSH remains low and FT3 low look at seeing T3 friendly endo

SlowDragon profile image
SlowDragonAdministrator in reply tomarielp612

verywellhealth.com/the-thyr...

Ask for cholesterol test

If result is high this suggests you are still under medicated for thyroid

High cholesterol is linked to being hypothyroid

nhs.uk/conditions/statins/c...

marielp612 profile image
marielp612 in reply toSlowDragon

Thank you again, SlowDragon... I will ask for those tests and also cholesterol, which was high before taking levo. Hoping for cooperation as, like so many others, just really running on empty.

Heloise profile image
Heloise in reply tomarielp612

There have been so many warnings that the TSH level once you begin treating with hormone is NO LONGER valid. For one, it is a test of the pituitary NOT your thyroid gland. FT4 measures the production from your thyroid gland and FT3 tell you if your body is correctly converting the T4 into T3. They are both so low it's difficult to tell how well your are converting but for certain your active hormone which is T3 is no where near enough to relieve symptoms in my opinion. You need to upgrade your dose or add T3. An average dose for Levo is about 125 mcgs. per day.

SlowDragon profile image
SlowDragonAdministrator in reply toHeloise

Or many do better on 100mcg Levo plus small dose of T3 (typically 3 x 5mcg)

marielp612 profile image
marielp612 in reply toSlowDragon

Thanks, Heloise and Slow Dragon. I'm going to ask for a trial of Levo with some T3 added, or at least Armour

Heloise profile image
Heloise in reply tomarielp612

I hope your doctor will comply. There is nothing worse than being on a dose that is insufficient. Again, it's my opinion that your body will need to compensate since every cell needs T3. If you run into a wall, there are other options so you won't need to ruin your health.

marielp612 profile image
marielp612 in reply toHeloise

Thanks Heloise, when I saw my results this morning That's exactly how I felt...like I had run full speed into a brick wall. I guess that will be the time when I ask for a pm to follow my own path, with the guidance of this unbelievably wonderful community. I know I need to research much more ,but today my brain is too shaky from running into that wall!!

Heloise profile image
Heloise in reply tomarielp612

I know and it's terrible. Most of us here have had the same challenge. I see a deterioration in the medical profession and I no longer waste time fighting the system. We just work our way around it and you will feel better for it.

SlowDragon profile image
SlowDragonAdministrator in reply tomarielp612

Until vitamins are optimal you won't know if you need T3

Only an NHS endocrinologist can diagnose clinical need for T3 prescribed on NHS

Many many people well and stable on NHS T3 are having it stopped against their wishes

You may need to get private consultation

Dossier presented to Lord O'Shaughnessy November 26th

drive.google.com/file/d/1c2...

Liothyronine gender inequality

england.nhs.uk/wp-content/u...

medscape.com/viewarticle/90...

thyroidtrust.org/media-cove...

theyworkforyou.com/search/?...

greygoose profile image
greygoose

There's nor reason why she should reduce your levo, your TSH is in-range. Before it was much too high. :)

marielp612 profile image
marielp612

Dr's office finally called to say lab results are fine and to stay on 50mcg levo and retest in 6 months! I asked to be increased to 75 mcg because FT3 is 2.5 (2.2-4.5 )and was told no for fear of toxicity. I'm not sure what next steps should be as I'm not responding much anymore to 50mcg. This is a new endo that I waited 6 months to see.

SlowDragon profile image
SlowDragonAdministrator in reply tomarielp612

Are you in the UK?

Email Dionne at Thyroid Uk for list of recommended thyroid specialists

You MUST get vitamins and thyroid antibodies tested before starting on any T3 or NDT

SlowDragon profile image
SlowDragonAdministrator

Post from 9 months ago.... ShootingStars advised on private testing options in USA

healthunlocked.com/thyroidu...

marielp612 profile image
marielp612

Thank you for responding, SlowDragon and reallyfedup. As far as private testing, stopthethyroidmadness.com has information for private testing in the US. I will ask my GP for the tests first and go private if necessary. Hope you are both well.

Snowwhite21 profile image
Snowwhite21

Hi I have just got a very similar blood result back - having some over function symptoms- did you reduce your dose at the time ? Kind Regards Michelle

marielp612 profile image
marielp612

Hi, I did not reduce my dose. In fact, after reading the responses here and after a lot of research, I decided to switch to NDT. I did it very slowly and have recently started to feel that I'm approaching an optimal dose for me. I never went back to that endo, but my new gp is following me and actually listens to my symptoms and orders FT3 with my labs! That's my experience...we are all unique and need to listen to our bodies. Best of luck to you!

Tibbytoots profile image
Tibbytoots in reply tomarielp612

Are you in the UK - sounds good your GP is listening - I’m in UK going privately to see an Endo. GP happy for me to go but says he can’t get me T3 on NHS if prescribed because of the cost. I may not need it though 😊

marielp612 profile image
marielp612

Hi, no I'm in the US... I'm very fortunate that I finally have a gp who listens to me, however, she is not treating me. I'm self-sourcing from Thailand and she is aware of that. Getting a prescription for T3 is just as unlikely here as it is in the UK. My free T3 was at the very lowest end of the range and is now 3/4 of the way through because of the NDT. Best to you!

Not what you're looking for?

You may also like...

TSH, FT3 & FT4 results

I've always been regarded by my GP as euthyroid as results are always in range, despite being...
ann_g_k profile image

Latest TSH FT3 FT4 results

I'm in a bit of a quandery as to know exactly what to do with my levo medication. I posted results...
80-10 profile image

Low TSH, FT4 & Ft3

I am taking 50 mcg OF T4 & 25 of T3 , My results from a couple days ago are: TSH 0.40—4.50 miU/L...
GKeith profile image

TSH/FT3/FT4 Test Results

Hi, Hope everyone is doing okay. I just had these results back: TSH 0.05 (0.2 to 4.2) FT3 4.17...

Low tsh, normal ft4/ft3

Can anyone explain as not getting any answers from doctors ? 1 year ago i went to the dr's with...
Vckij profile image

Moderation team

See all
PurpleNails profile image
PurpleNailsAdministrator
SlowDragon profile image
SlowDragonAdministrator
RedApple profile image
RedAppleAdministrator

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.