T3: Hi - is my free T3 ok? I think it’s alright... - Thyroid UK

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Biddy51 profile image
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Hi - is my free T3 ok? I think it’s alright.

It’s 4.2 pmol/l this is through the NHS in the U.K. 😉

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Biddy51
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SeasideSusie profile image
SeasideSusieRemembering

Biddy

As reference ranges vary from lab to lab, there is no standard range even with the NHS. Please give the reference range that came with your result and members can comment.

Is there a particular reason you're asking if your FT3 result is alright?

Also, how do you feel?

What are your TSH and FT4 results (with ranges)?

What thyroid meds are you taking?

shaws profile image
shawsAdministrator

The most important question is - "how are you feeling and are symptoms being relieved (or are relieved)".

SlowDragon profile image
SlowDragonAdministrator

You never replied to this

For full Thyroid evaluation you need TSH, FT4 and FT3 plus both TPO and TG thyroid antibodies tested. Also important to test vitamin D, folate, ferritin and B12

Low vitamin levels are extremely common, especially if Thyroid antibodies are raised

Recommended on here that all thyroid blood tests should ideally be done as early as possible in morning and fasting. This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip, best not mentioned to GP or phlebotomist)

Last Levothyroxine dose should be 24 hours prior to test, (taking delayed dose immediately after blood draw).

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

75mcg is only one step up from starter dose

The aim of Levothyroxine is to increase the dose slowly in 25mcg steps upwards until TSH is under 2 (many need TSH significantly under one) and most important is that FT4 in top third of range and FT3 at least half way in range

All four vitamins need to be regularly tested and frequently need supplementing to maintain optimal levels

NHS guidelines on Levothyroxine including that most patients eventually need somewhere between 100mcg and 200mcg Levothyroxine.

nhs.uk/medicines/levothyrox...

Also what foods to avoid (eg recommended to avoid calcium rich foods at least four hours from taking Levo)

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