Serum Free T4 level high: I have... - Thyroid UK

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Serum Free T4 level high

pip173 profile image
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I have hypothyroididm and have had it for years. I used to medicate myself, but can no longer afford to do so. I am now taking 100 ml of levothyroxine. I now seem to hae a problem with high blood pressure, hot flushes and what I call adrenalin punches in the stomach. I would not say I was ill, but I think my medication needs tweaking.

I have now had my annual blood test. My doctor only tested for two things: Serum FSH level and Serum T4 level. My TSH level is within the normal range, although on the high side, it is 3.4 mIU/L (above 4.2 is considered high), but my Serum T4 level is above normal. It is 22.6 pmol/L.

I have an appointment with the Endocrinology department in my local hospital. I know they are going to be more interested in my test results than how I feel, so can anyone give me any advice as to how I can use these minimal results, other than by saying I am not happy that the Free T4 is so high.?

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helvella profile image
helvellaAdministratorThyroid UK

How long did you leave between your last tablet and the blood draw for that test?

helvella - Scheduling Blood Draws

Factors to consider when choosing time for blood draws. Includes links to several documents/webpages and previous HealthUnlocked posts.

Last updated 18/07/2024

helvella.blogspot.com/p/hel...

Rainbow-Lover profile image
Rainbow-Lover

You haven’t mentioned FT3 leve. If that was tested and is quite low in range, that suggests that you could have a problem in converting T4 to FT3

SlowDragon profile image
SlowDragonAdministrator

I have an appointment with the Endocrinology department in my local hospital.

Strongly recommend you get FULL thyroid and vitamin testing done yourself private BEFORE consultation

You need Ft3 and vitamin results

Is your hypothyroidism autoimmune (hashimoto’s)

Recommended that all thyroid blood tests early morning, ideally just before 9am, only drink water between waking and test and last dose levothyroxine 24 hours before test

This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip)

Private tests are available as NHS currently rarely tests Ft3 or all relevant vitamins

Post all about what time of day to test

healthunlocked.com/thyroidu...

Testing options and includes money off codes for private testing

thyroiduk.org/testing/

Medichecks Thyroid plus BOTH TPO and TG antibodies and vitamins

medichecks.com/products/adv...

Blue Horizon Thyroid Premium Gold includes BOTH TPO and TG antibodies, cortisol and vitamins

bluehorizonbloodtests.co.uk...

Only do private testing early Monday or Tuesday morning.

Link about thyroid blood tests

thyroiduk.org/testing/thyro...

Link about Hashimoto’s

thyroiduk.org/hypothyroid-b...

Symptoms of hypothyroidism

thyroiduk.org/signs-and-sym...

Tips on how to do DIY finger prick test

support.medichecks.com/hc/e...

Medichecks and BH also offer private blood draw at clinic near you, or private nurse to your own home…..for an extra fee

Monitor My Health also now offer thyroid and vitamin testing, plus cholesterol and HBA1C for £65

(Doesn’t include thyroid antibodies)

monitormyhealth.org.uk/full...

10% off code here

thyroiduk.org/testing/priva...

Were you previously adding T3 alongside levothyroxine

T3 ….day before test split T3 as 2 or 3 smaller doses spread through the day, with last dose approximately 8-12 hours before test

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