T4 labs: Not sure how else to post my labs so I’m... - Thyroid UK

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T4 labs

Bustamove86 profile image
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Not sure how else to post my labs so I’m making 3 posts because I can only add one photo per comment 😬

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Bustamove86
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SlowDragon profile image
SlowDragonAdministrator

Your profile shows you had total thyroidectomy

Your bloods show you are currently very under treated and FT4 is low and FT3 is significantly UNDER RANGE

How much Levothyroxine are you currently taking?

You need vitamin D, folate, ferritin and B12 tested too

Likely to need addition of small dose of T3

But important to get vitamins tested first.

For full Thyroid evaluation you need TSH, FT4 and FT3 tested. Also extremely important to test vitamin D, folate, ferritin and B12

Low vitamin levels are extremely common, especially if under medicated

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).

If/when you are also on T3, make sure to take last dose 8-12 hours prior to test, even if this means adjusting time or splitting of dose day before test

Is this how you do your tests?

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

What vitamin supplements do you currently take?

greygoose profile image
greygoose in reply to SlowDragon

I don't think that is FT3, is it? The range looks more like TT3.

SlowDragon profile image
SlowDragonAdministrator in reply to greygoose

Good point

USA usually only tests TT3

Still very under range

greygoose profile image
greygoose in reply to SlowDragon

Indeed.

SlowDragon profile image
SlowDragonAdministrator in reply to SlowDragon

Reading earlier posts think you are on 175mcg Levothyroxine plus 2 x 5mcg T3

This will reduce TSH to zero (as seen in your tests) regardless of wether on high enough replacement dose

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).

If/when also on T3, make sure to take last dose 8-12 hours prior to test, even if this means adjusting time or splitting of dose day before test

Is this how you do your tests?

If so........You clearly need increase in T3 ......suggest you add third 5mcg dose T3

Retesting in 6-8 weeks

Bustamove86 profile image
Bustamove86 in reply to SlowDragon

Hi! I was just increased from 3 to 4 x day of 5mcg t3. Thank you!

SlowDragon profile image
SlowDragonAdministrator in reply to Bustamove86

Personally I take 10mcg at 7am, 5mcg at 3pm and 5mcg at 11pm

I find last dose improves sleep,

Bustamove86 profile image
Bustamove86

Sister has Hashimoto. I had thyroid cancer with total thyroidectomy

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