my TSH is .07 reference range is 0.5-5.5 - Thyroid UK

Thyroid UK

137,148 members160,828 posts

my TSH is .07 reference range is 0.5-5.5

JUNEHEALTH profile image
4 Replies

I am 53 years old and have been on thyroid med since late 30s and am going through perimenopause and I have taken at least 2 blood tests since August 2017. I feel energetic, fit, very little anxiety. My doctor(s) has changed my dosage from 120mcg to 88mcg to 75mcg. My TSH is now .07 but it was 12 on 10/30/2017. I am tempting to see a naturopath doctor because these doctors don't know anything. I don't know why I am feeling great but my test result swing from the extreme left to the extreme right of the spectrum.

Written by
JUNEHEALTH profile image
JUNEHEALTH
To view profiles and participate in discussions please or .
Read more about...
4 Replies
SeasideSusie profile image
SeasideSusieRemembering

JUNEHEALTH

Are your blood tests always done at the same time of day and u see the same conditions? We always advise to have tests done at the earliest appointment of the morning, fast overnight (water allowed) and leave off Levo for 24 hours. Results can be compared accurately if conditions are the same each time.

Also, have you had thyroid antibodies tested? Raised antibodies (TPO and/or TG) confirms autoimmune thyroid disease aka Hashimoto's which causes fluctuations in symptoms and test results.

JUNEHEALTH profile image
JUNEHEALTH in reply to SeasideSusie

I did not fast. I asked if I should fast but my doctor said no. But I think it is good idea. I believe I tested my blood about the same time of the day but I will do so in the future. I will ask my doctor about thyroid antibody test. I emailed my doctor and they reply when she wants to. My insurance is Kaiser Permanente. Does anyone has the same experience? I used to have a caring doctor when I had Regence insurance but I switch to Kaiser due to lower monthly premium.

SlowDragon profile image
SlowDragonAdministrator

Ask GP to test vitamin D, folate, ferritin and B12.

Highly likely to be too low, especially since they have reduced dose (almost certainly erroneously)

See Box 1. Towards end of article

Some possible causes of persistent symptoms in euthyroid patients on L-T4

You will see low vitamin D, folate, ferritin and B12 listed

onlinelibrary.wiley.com/doi...

Important to know if you have raised antibodies too

Dr Toft, past president of the British Thyroid Association and leading endocrinologist, states in Pulse Magazine,

"The appropriate dose of levothyroxine is that which restores euthyroidism and serum TSH to the lower part of the reference range - 0.2-0.5mU/l.

In this case, free thyroxine is likely to be in the upper part of its reference range or even slightly elevated – 18-22pmol/l.

Most patients will feel well in that circumstance. But some need a higher dose of levothyroxine to suppress serum TSH and then the serum-free T4 concentration will be elevated at around 24-28pmol/l.

This 'exogenous subclinical hyperthyroidism' is not dangerous as long as serum T3 is unequivocally normal – that is, serum total around T3 1.7nmol/l (reference range 1.0-2.2nmol/l)."

You can obtain a copy of the articles from Thyroid UK email dionne.fulcher@thyroidUK.org. print it and highlight question 6 to show your doctor.

Prof Toft - article just published now saying T3 is likely essential for many

rcpe.ac.uk/sites/default/fi...

JUNEHEALTH profile image
JUNEHEALTH

When I asked my doctor if I should see a naturopath doctor, my doctor did not bother to reply. Did I hurt her self esteem? This is my life and I want to know what is happening to me.

You may also like...

New reference range for TSH

2. Does this mean I know fall into the range whereby I might get medication from my gp ? I am 60...

TSH Reference Ranges in the USA

the top of the TSH range in the USA is 3.00. (And that “they” start treatment if TSH goes above that

On NDT and my TSH in a range

taking NDT to have TSH in a range? I had total thyroidectomy in 2017. I didn't feel well on Levo...

Is 0.39 TSH not low? (range 0.3 - 5.5)

pleurisy and pneumonia last couple of years that don't respond quickly to treatment (she keeps...

Explanation of paper with a new way of getting the TSH reference range

finding patients at a particular TSH value over the whole range of TSH values. What you get is a...