Childrens freeT3 levels

[Guest guest]

Hello everyone

I'm sorry if this has been asked before as I'm new here,

I did search the archives but could not find anything particularly relevant.

My son has autism, when he had his thyroid tested he tested in what I believe to

be quite low in freeT3 his results were as follows:

> TSH 0.7 mU/L (0.40 - 4.00)

> fT4 13 pmol/L (10 - 20)

> fT3 6.9pmol/L (2.8 - 6.8)

When he was 5 and

TSH 1.4 (1.5)

fT4 17.2 (17-20)

fT3 5.4 (6-8)

when he was 7

His thyroid anti-bodies were negative according to a test we had at the same

time as the 7 yr old test, he is now 8yrs old.

The different ref.ranges are probably because different labs were used.

I believe that a universal ref.range was used rather than a child appropriate

ref.range, I think the ref.range for fT3 for a child under 8 is about 3.8-10.4,

if this is the case then his fT3 clearly is not in the upper third of an

appropriate ref.range and am concerned that low levels of fT3 may have

contributed to his learning difficulties, low fT3's seem to be quite common in

Autism although IMO a symptom rather than a cause.

If anyone might be able to advise on and how to try to increase fT3 relatively

safely I would be grateful and maybe there are opinions on the ref.range, I

realise that childrens thyroid problems is a difficult subject, there seems to

be very little literature on this and understand if I don't get any replies.

Many Thanks

Kenny

[Guest guest]

Hi Kenny

You are probably worrying quite unnecessarily about your son's

free T3 level. The results you have listed actually show that that his free T3

is quite high which is to be expected in children and young adults, serum free

T3 is significantly higher. I personally have not heard of a different

reference range for free T3 being used for children, but somebody might tell me

differently - see http://www.thyroidmanager.org/Chapter6/Ch-6b-3.htm

.. As this seems to be of real concern to you, I would speak with

your doctor and ask for your son to be referred to an endocrinologist who deals

with children. You should not try to increase his free T3 levels without

medical supervision as this can be quite dangerous if this is not needed.

Let us know how you go on.

Luv - Sheila

I'm sorry if this has been asked before as I'm new here,

I did search the archives but could not find anything particularly relevant.

My son has autism, when he had his thyroid tested he tested in what I believe

to be quite low in freeT3 his results were as follows:

> TSH 0.7 mU/L (0.40 - 4.00)

> fT4 13 pmol/L (10 - 20)

> fT3 6.9pmol/L (2.8 - 6.8)

When he was 5 and

TSH 1.4 (1.5)

fT4 17.2 (17-20)

fT3 5.4 (6-8)

when he was 7

His thyroid anti-bodies were negative according to a test we had at the same

time as the 7 yr old test, he is now 8yrs old

I believe that a universal ref.range was used rather than a child appropriate

ref.range, I think the ref.range for fT3 for a child under 8 is about 3.8-10.4,

if this is the case then his fT3 clearly is not in the upper third of an

appropriate ref.range and am concerned that low levels of fT3 may have

contributed to his learning difficulties, low fT3's seem to be quite common in

Autism although IMO a symptom rather than a cause.

If anyone might be able to advise on and how to try to increase fT3 relatively

safely I would be grateful and maybe there are opinions on the ref.range, I

realise that childrens thyroid problems is a difficult subject, there seems to

be very little literature on this and understand if I don't get any replies.

[Guest guest]

Hi there Kenny, I am in the same boat as you.1 my son now 39 has autism and poss-able thyroid issues. my other son has aspergers. you need to take a morning temperature for at least 5 days,before getting out of bed. this should be about 98.2 or above, if lower than this maybe around 97.0-97.8 then this could point to hypothyroidism. my son and me have a temperature of 97.0-97.2.i have hashimoto`s and may have passed this to my son. the temps could be much lower than this but with the results he has I would think he seems normal, at least for treating. doctors don`t test for auto-antibodies until the TSH is over 5.0, which by the way is much

to high.normal is around 1.0. they will not treat mild cases either. what is his symptoms?? my son don`t get up in the morning until around 11 or 12 o'clock.and has hay fever in the past, but not bad at the moment. allergies seem to be present with autoimmune conditions. autism is passed on by the mother usually but the fathers genes can be involved also.auto-antibodies are present in mothers when conceiving for the first time. this triggers a reaction , so pregnant mothers are not routinely tested. and can then give birth to baby`s that have brain damage.hope this

helps. feel free to email me privately if you would like more info. their is something in our files about pregnancy and the thyroid. Angel.

[Guest guest]

Thank you Sheila

Your reply is reassuring we have an appt. with my son's paedetrician

next month and will discuss this with him, although I suppose it might be

difficult to persaude him to refer us to an endo based on these results.

The link you sent is very useful and have searched a fair bit using this.

Kind Regards

Kenny

>

> Hi Kenny

>

> You are probably worrying quite unnecessarily about your son's free T3

> level. The results you have listed actually show that that his free T3 is

> quite high which is to be expected in children and young adults, serum free

> T3 is significantly higher. I personally have not heard of a different

> reference range for free T3 being used for children, but somebody might tell

> me differently - see <http://www.thyroidmanager.org/Chapter6/Ch-6b-3.htm>

> http://www.thyroidmanager.org/Chapter6/Ch-6b-3.htm .

[Ed]

[Guest guest]

Thank you Angel

My son does have severe allergies but he regressed in to Autism quite late at a

little over 3 yrs old.

I know this is going to make me sound stupid but I have purchased a couple of

mercury thermometers in the past but after one reading they get stuck on a high

position and neither myself or my wife has managed to shake them down without

the risk of breaking them, the in your ear ones like the doctors use will be my

next purchase.

I am very grateful for your reply and offer and might take you up on it when I

discuss this with my wife, I'm away from home at the moment until next month.

Best wishes to you and your family

Kenny

>

> Hi there Kenny, I am in the same boat as you.1 my son now 39 has autism and

poss-able thyroid issues. my other son has aspergers. you need to take a morning

temperature for at least 5 days,

> before getting out of bed. this should be about 98.2 or above, if lower than

this maybe around 97.0-97.8 then this could point to hypothyroidism. my son and

me have a temperature of 97.0-97.2.

>>

[Guest guest]

Thank you Sheila

I did stick them in the freezer for about 1/2 an hour or so and it did'nt

shift, I will definitely give the cold water a go.

Cheers Kenny

>

> Kenny, place the thermometers in a glass of cold water (not freezing) to

> bring the mercury down to the bottom again. It can be difficult to shake the