I am seeing an Endocrinologist in a couple of weeks, I was diagnosed with B12 Deficiency last December and am having treatment. Unfortunately, my MVC are getting larger since treatment and I have been told to check out my thyroid. I have had my T3 free, T4 free and TSH blood tests done but I had my breakfast and it was about 9.30am but I fasted for all the other blood tests. I am a female and 56 years old .
TSH 1.8 (0.400 - 4.2)
T3 free 2.4 (2.1 - 4.4)
T4 free 0.9 (0.7 - 1.8)
MCV 100.00 (80.0 - 97.0) May 22 MCV 96.4 (80.0 - 98.0) Dec 21
MCH 33.2 (26.0 – 34.0) May 22 MCH 30.9 (27.0 – 32.0) Dec 21
Folic Acid >20.0 (>15.0 value ideal)
Serum Iron 124 (60 – 170)
Ferritin 119.8 (50.0 – 200.0)
Should I do my thyroid test again this time fasting and are there any other tests I should do. Any help would be much appreciated. Thank you
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Bubydizer
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Thank you for your reply. I had my vitamin D tested in December 68.3 (30 – 100 value recommended). Supplements I take are B12 injection Hydroxo every other day, Folic acid 5mg daily, Glucosamine, Vitamin D 20,000 every 4 days ,B complex 2 times a week (gives me digestive Problems) Calcium bone support with mag. (can`t have dairy).
I am in Portugal and getting the tests done bit by bit.
So those Ft3 and Ft4 numbers being low would that look like it could be Hypothyroidism? My Mum and Granny had thyroid problems. Thank you for all the information.
When you state your have a B12 deficiency is it due to you having Pernicious Anaemia or just low B12?
The reason I am asking is that my mother had Pernicious Anaemia and had regular B12 injections. Unfortunately, later on my mother was told she needed no more injections and we were quite happy with that but, unfortunately, due to not getting regular B12 injections she developed stomach cancer, which was fatal.
I, too, have Pernicious Anaemia but now get monthly injections instead of quarterly.
I am sorry to hear about your mum. I haven’t been tested for Pernicious Anemia but I can’t absorb b12 through food and have neurological symptoms. So I am having regular B12 injections. Keep well.
Fasting before a thyroid test is not considered necessary by everyone, but eating beforehand has been shown to sometimes result in a slightly lower tsh. However, as you are not on medication for any thyroid condition, your results do not currently indicate hypothyroidism. In the UK your MCV and MCH levels, plus B12 and anaemia issues, would lead to a haematologist referral, as this is their area of expertise. Hopefully your endo will be able to help you with this.
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A small question about blood results.
Thyroid results 
New to this - thyroid levels jumping around?
thyroid blood test results
