My ft4 was 11.2 with TSH of .29 in the summer. Then TSH around .38 two months later
I had 2 previous lowish results for ft4 and TSH in 2017.
Now ft4 (for some unknown reason) has gone up to 16 (range 10-22) with TSH of .72.
My question is: does this now look ok?
I've been referred to a pituitary specialist to look into possible central hypothyroidism which my brother has. All pituitary hormones have come back normal but testosterone one point off low.
I'm still going to be seen in February but wonder whether anything will happen with a good ft4 level, do people get treated with these levels?
I've always got a high MCV for no other obvious reason, low body temperature etc.
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Thenightowl
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What vitamin supplements are you currently taking?
For full Thyroid evaluation you need TSH, FT4 and FT3 plus both TPO and TG thyroid antibodies tested. Also EXTREMELY important to test vitamin D, folate, ferritin and B12
Low vitamin levels are extremely common, especially if you have autoimmune thyroid disease (Hashimoto's) diagnosed by raised Thyroid antibodies
Ask GP to test vitamin levels
Recommended on here that all thyroid blood tests should ideally be done as early as possible in morning and before eating or drinking anything other than water .
This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip)
Is this how you do your tests?
Private tests are available as NHS currently rarely tests Ft3 or thyroid antibodies or all relevant vitamins
Hi, I've had all of these tested recently except TPO, TG and ft3, do you think these are relevant with central hypothyroidism? My appointment is at a pituitary centre of excellence with a recommended specialist but I don't want anything missed.
I'm on daily b12 injections and 5mg folate since Feb but MCV been getting higher, was 104, not caused by alcohol. Chronic low ferritin monitored and going up nicely this year. On D3 but levels always good.
Do you know- Can I have hypothyroidism symptoms with an ft4 of 16?
Having central hypothyroidism in no way rules out also having autoimmunity. If ignored, by not being tested, you might find some oddities down the line.
High MCV could be low vitamin B12 or low folate. Definitely should be checked properly.
Adding:
MCV Mean Corpuscular Volume
Increased with B12 and Folate deficiency, liver disease, underactive thyroid, pregnancy, alcohol excess, some bone marrow disorders; decreased with iron deficiency, longstanding inflammatory disorders and thalassaemia
I'll make sure I'll get the extra checks somehow- I'm on b12 injections and folate, and not caused by alcohol. So the high MCV is odd. It went up when I started raising my ferritin... But has always hovered around 100. Liver is always fine, bone marrow- ?
MCV should progress downward for most of the time between starting injection/folate and the time that full replacement of your red blood cells has been achieved.
A lot of people find 5 milligrams of folate (or folic acid) too much.
That's interesting and very helpful. I get pretty regular blood tests from the GPs as I'm a bit complicated, so it'll be interesting where the MCV level settles with my lovely shiny new blood cells and my ferritin continues to increase. Also often low red and always low white blood cell count too, no wonder I'm tired...
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