Hi
I’m taking 100g of thyroxine and my latest TSH was 1.2
I’m confused as to why this has been labelled borderline and a repeat requested. I thought it was meant to be below 2 when taking thyroxine and there’s an absolutely spot on result!
Any thoughts?
Confused I am.
Looking at previous posts
Your dose was increased to 100mcg 2 months ago
as per previous replies in this post
healthunlocked.com/thyroidu....
Just testing TSH is useless
Get full thyroid and vitamin testing
Wait at least 6 weeks after steroid injection as this may lower TSH
A pile of tests including B12 and folate and liver function kidney function and fbc all absolutely normal. Ferritin is raised 196 but I’m not surprised given my knees being a nuisance. It’s the borderline tsh that’s bothering me. I’m finally awake for the whole day. Only 9 hours sleep. I feel better. Now I’m worried they’ll do a retest and then reduce my thyroxine or some such. Might put my head in the sand. I think I’ll just not make the blood appointment and hope if all goes away.
Updated reference ranges for top of ferritin range depending upon age
healthunlocked.com/thyroidu...
Thank you for your incredible patience while you have been awaiting the outcome of our ferritin reference range review. We conducted this with Inuvi lab, which has now changed the reference ranges to the following:
Females 18 ≤ age < 40. 30 to 180
Females 40 ≤ age < 50. 30 to 207
Females 50 ≤ age < 60. 30 to 264l
Females Age ≥ 60. 30 to 332
Males 18 ≤ age < 40 30 to 442
Males Age ≥ 40 30 to 518
The lower limits of 30 are by the NICE threshold of <30 for iron deficiency. Our review of Medichecks data has determined the upper limits. This retrospective study used a large dataset of blood test results from 25,425 healthy participants aged 18 to 97 over seven years. This is the most extensive study on ferritin reference ranges, and we hope to achieve journal publication so that these ranges can be applied more widely.
It’s the borderline tsh that’s bothering me.
TSH is NOT borderline….it’s absolutely fine
Graph showing median TSH in healthy population is 1-1.5
web.archive.org/web/2004060...
Comprehensive list of references for needing LOW TSH on levothyroxine
healthunlocked.com/thyroidu....
onlinelibrary.wiley.com/doi...
If symptoms of hypothyroidism persist despite normalisation of TSH, the dose of levothyroxine can be titrated further to place the TSH in the lower part of the reference range or even slightly below (i.e., TSH: 0.1–2.0 mU/L), but avoiding TSH < 0.1 mU/L. Use of alternate day dosing of different levothyroxine strengths may be needed to achieve this (e.g., 100 mcg for 4 days; 125 mcg for 3 days weekly).
sciencedirect.com/science/a...
The optimal daily dose in overt hypothyroidism is 1·5–1·8 μg per kg of bodyweight, rounded to the nearest 25 μg
hi there. Sorry I'm jumping in here as you obviously know what you're talking about and I'm in a bit of a situation atm and due to speak to my Endo consultant in the next few days
I am putting in weight 0.5 per week and feeling tired my latest results are 16.5 T4 and 3.5 T3 I'm currently taking 75 T4 and 15 T3 split in 2 doses.
I've been reading what you say about testing timings and my last test was done within 4 hours of my morning dose!!
I've had Hashimoto for 24 years so I'm defo at late stages. I watch my diet I'm gluten free and supplement with all the relevant vitamins. I'm really on it generally but don't understand why my things have suddenly got out of whack.
What dose should I ask for when I speak to dr 100 T4 and maybe 25 T3 or is that too much?
Sorry if I should have done a separate post but I've never posted before.
Welcome aboard
Best to start a new post of your own else the original poster receives all replies which might be confusing... it also makes it much easier to look back on advice given to you
You can copy and paste your reply into a new post ✏️Write button
Just add a title 🤗
Thankyou
I really appreciate being able to talk to someone knowledgeable on the topic and then to be able to read the reports myself,
Borderline what? A TSH of 1.2 is euthyroid - not borderline anything. Hypos usually need TSH below 1. Somebody had messed up there! 
You are right and they are wrong. It would be interesting to find out if you question it what they say! I can bet a large jam doughnut they wont just say ooops!
On Thyroxine - 8 weeks bloods shows TSH has dropped but still feel dreadful.
Thyroid results 
Medichecks results
Borderline Hyperthyroidism?
Test Results 
