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Author Topic: Interpreting thyroid function tests  (Read 8497 times)

Clarella

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Re: Interpreting thyroid function tests
« Reply #45 on: June 16, 2022, 08:59:53 PM »

Hi All

Here are my results from
Medichecks

TSH 1.25 mU/L Range 0.27- 4.2
Free T3. 3.63 pmol/L Range 3.1 - 6.8
Free Thyroxine 16.8 pmol/L Range 12-22
Antibodies
Thyroglobulin  11 IU/ml Range <115
Thyroid Peroxidase <9 IU/ml Range <34

I’m on 60mcg thyroxine. I’m under weight so my specialist I think bases it somewhat on body weight.

Any suggestions anyone? xx

Unsure how you’re on 60, is that alternate day dosing? I’d nudge it up very slightly to see if you can get tsh around 0.5, t4 will be a little higher at around 19-21 and then hopefully t3. Also need to see how you are after 2-3 months at that dose.

I wouldn’t try t3 till you know you can’t convert.

There’s a tricky sweet spot with thyroxine as if t3 gets a little too high the body dials down conversion. Then you swing a bit and can feel similar symptoms to hypo. I’ve personally had tsh staying the same despite dropping thyroxine. Felt better for it as actually had more t3 naturally made. 
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ATB

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Re: Interpreting thyroid function tests
« Reply #46 on: June 17, 2022, 05:35:44 AM »

TSH should largely be ignored once you’re on medication. I wouldn’t use it to determine dose, I’ve been told over and over again it’s unreliable once medicated as it’s suppressed from medication.
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Marchlove

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Re: Interpreting thyroid function tests
« Reply #47 on: June 17, 2022, 06:38:24 AM »

It’s compounded Clarella.

I’m going to stay awhile longer on this dose as not been on it very long and also stupidly stopped it for 5 days when I got covid!

I’ve got a review in early August so I think will see how I’m doing them as specialist will do bloods.
X
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Marchlove

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Re: Interpreting thyroid function tests
« Reply #48 on: June 17, 2022, 07:09:34 AM »

A word of caution for anyone thinking of supplementing with selenium to help lower thyroid antibodies. Don’t take too much, especially if you have amalgams!
I only take 100mcg a day although 200mcg would probably be ok without testing.
Also, if you do decide to supplement it’s best to use organic. X
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ATB

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Re: Interpreting thyroid function tests
« Reply #49 on: June 17, 2022, 07:30:49 AM »

I eat 1 Brazil nut a day for selenium. You’re right it is easy to get too much, even in Brazil nuts. 4 or more a day could lead to toxicity.
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GeckoKath

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Re: Interpreting thyroid function tests
« Reply #50 on: June 21, 2022, 09:20:18 AM »

Good morning all,

So I’ve had my thyroid results

TSH 2.34 range 0.27-4.20
Free t4 15.4 range 12.0-22.0
Free t3 5.20 3.1-6.8

Anti thyroidperoxidase 11 range <34
Anti thyroglobulin 15 range <115

Interestingly, my TSH has increased from 0.73/0.98 back in 2018 when tests were done, and has been increasing on each test since to date?

My interpretation of this is from all of your helpful comments and website links is as follows:

My Free t3 is above mid range, but would ideally be in upper quarter, and my free t4 should be above mid range but is below.

I’ve been taking my basal aux/underarm temperature for last 9 days and my average is 35.9’C

I do have what appear to be many of the symptoms related to thyroid, feeling cold, especially feet, fatigued with difficultly staying awake in the afternoons, constipation, anxiety, muscle weakness, trouble sleeping etc, - the list goes on as I know many of you know.

I’d really appreciate any comments/advice from those of you who are clearly very knowledgable. I’m concerned that if I talk to my usual GP about this they will say my results are normal. I think I am menopausal too, and had started on HRT back in March, and initially I felt slightly better, but then there was trouble with supply and I was put on a different one, and tbh im not sure if that one just wasn’t as good, or whether there is more things going on here, like thyroid, as then I started to feel even worse so have stopped the HRT completely.

Im so fed up with feeling so rubbish and fed up!  :-\ Sorry to moan, but it really does get you down at times, especially when you are made to feel that you are making a fuss about nothing as your blood results are deemed to be ‘normal’!?

Thanks so much all of you lovely ladies for reading this, I hope you are having a good day, and I look forward to hearing what any of you have to say  ;) x
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GeckoKath

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Re: Interpreting thyroid function tests
« Reply #51 on: June 21, 2022, 04:36:40 PM »

Thanks so much ATB 🙏, really appreciate you taking the time to reply.
I no longer have a womb so difficult to say re cycle, but yes I will continue to measure temperature for sure 👍, record symptoms, and look in more details about estrogen/sex hormone effects.
All great advise, many thanks again x
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Marchlove

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Re: Interpreting thyroid function tests
« Reply #52 on: August 13, 2022, 09:24:38 AM »

Hi All

Thought I’d put a post on here to see how everyone is doing?

It’s a pity we no longer have ATB to guide us through our thyroid issues but hopefully we can muddle through with the use of the great links she provided at the start of this thread and the advice she has also given.

I feel it’s important to keep this thread going as it has good information for people just starting their thyroid journey and indeed for those of us who are already taking thyroid medication.

I’m due to have my thyroid bloods taken again soon, so I will post the results once I have them. xx
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CLKD

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Re: Interpreting thyroid function tests
« Reply #53 on: August 13, 2022, 04:22:46 PM »

It is known that GPs are reluctant to do further testing if patients' thyroid function test returns 'within normal limits'. This is for men was well as women, even when patients return over and again feeling ill  >:(
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Tora

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Re: Interpreting thyroid function tests
« Reply #54 on: September 25, 2022, 08:25:02 AM »

Hope it’s ok to post on this thread as it’s been quiet for a while.

I’m researching thyroid as I don’t have symptoms but my thyroid panel results are strange. I stopped all HRT on the 14th of September to try and work out what’s going on.

How are you doing Marchlove?
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Marchlove

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Re: Interpreting thyroid function tests
« Reply #55 on: September 25, 2022, 08:33:23 AM »

Hi Tora

I’m doing ok thyroid wise, I think! Due for a review soon.
My specialist told me a couple of months ago when I complained that I felt hot all the time (not flushes) that generally we need less levothyroxine in the summer that we do in the winter, that was a new one for me!

Do you want to share your thyroid results on here, to see if anyone can help?

Mx
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Tora

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Re: Interpreting thyroid function tests
« Reply #56 on: September 25, 2022, 08:59:29 AM »

Hi ML,
That’s good to hear! I’ve recently read that levo can need adjusting in the summer too. Sounds like you’ve got a good consultant that listens to your symptoms.
The NHS did a basic TSH & T4 test in late August, my TSH was undetectable and the T4 was 22 on a range of 12-22. As I felt good it was deemed normal. I’ve since found out that my TSH has not been detected for years. I’m not on thyroid meds as didn’t know there may be an issue.

I did a Medichecks advanced panel two weeks ago, the results (range in brackets) are:
TSH 3.53 (0.27 - 4.2).
FT4 17.8 (12-22).
FT3 3.93 (3.1- 6.8 )
Thyroglobulin Anti’s 11 (<115).
Thyroid PEROXIDASE 9 (< 34).
B12 Active 150 (37.5 - 150).
Ferritin 105 (13-150).
Folate 16.59 (3.59 - 19.45).
Vit D 160 (50-200).
CRP HS 0.73 (0-5).

I’m not sure how often to re-test so I’m thinking every two weeks?

There’s so much conflicting info regarding thyroid!

Thanks.x





« Last Edit: September 25, 2022, 09:05:54 AM by Tora »
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Marchlove

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Re: Interpreting thyroid function tests
« Reply #57 on: September 25, 2022, 09:27:43 AM »

Hi Tora

I’ll get back to you later as need to get my thyroid book out before I reply!
Hopefully Wrensong will be along to give a more accurate interpretation of your results, as I’m still quite a newbie to it all.

Mx
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Marchlove

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Re: Interpreting thyroid function tests
« Reply #58 on: September 25, 2022, 06:49:05 PM »

Hi Tora

It’s all a bit odd indeed!

I’m slightly confused as to the reason for stopping your hrt, was it purely to see what might be going on with regarding your undetectable Tsh?

What’s strange is that in a very short space of time, your TSH went from undetectable to 3.53.

I’ve looked online (I expect you have as well!) and there seems to be a number of  reasons for a undetectable TSH result.
The only ones I was previously aware of was too high a dose of levothyroxine or Graves’ disease, but the first reason doesn’t apply and it doesn’t sound like Graves’ disease as you have no symptoms.

HRT, especially oral, can apparently increase TSH, but that has not, so it seems, been the case with you.

I don’t know quite what to suggest. I was hoping Wrensong might be along but she doesn’t look at the forum that often.  However, she is always happy to help with thyroid issues, so I would PM her and ask her opinion.

Apart from that your must recent thyroid results suggest the following-
TSH migh be a bit high, but if no symptoms it’s probably ok.
FT4 looks fine
FT3 is low, it should be in the upper quarter.

If yoo look back through this thread you will see suggestions for a couple of supplements that help conversion from T4 to T3.
Zinc (start with 15 mg for a few months and then you can increase to 30mg if you want. I stick with 15 mg though. Take with food in evening.
Selenium - I take 100 mcg a day

There’s something to be said for why try and fix something that you don’t have symptoms for, so it’s a bit of a dilemma.

M x
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Tora

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Re: Interpreting thyroid function tests
« Reply #59 on: September 26, 2022, 11:14:24 AM »

Hi Marchlove,

I really appreciate your time, help and kindness with this, thank you.

I stopped the HRT when I got the Medichecks results showing TSH of 3.53 and low FT3. This was done in haste and I’ll introduce HRT in much smaller doses when I’ve had more tests or if symptoms return.

The GP believes I’m hypERthyroid and that my insomnia, hyperactivity and flexibility are symptoms. I would just say I’m an active, energetic person opposed to hyperactive! The recent results don’t suggest hyperthyroidism to me but I’m concerned with being told of non-detectable TSH over several years.

I’ve tracked nutrients since February with really good results. I eat a lot of selenium so I don’t supplement it but aim for 30mg of zinc daily, I always hit at least 22mg. Have you noticed a difference with supplements/watching nutrition?

I’m not too concerned about TSH as if it’s telling my thyroid to release more T3 that explains why it’s higher - at least it’s working!

I’ve ordered a full screen from the NHS lab place and will repeat the Medichecks tests and just monitor it for now. It’s a good excuse to rule out frightening stuff that can lower T3.

I’ve left a message for the MS too.

I’ll keep a look out for Wrensong.

Thanks for this. X
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