I had a blood test last week on the NHS and my results are back (shown above). I don't know the difference between pmol/L and ng/L so the Folate Serum and vitamin B12 results means very little to me.
There were increases in:
Vitamin D
Free T3
Free T4
There were decreases in:
Ferritin
TSH
There was a 6-week period between blood tests when my Levothyroxine was increased to 125 mcg/day (it was 75 mcg/day), and I also took a vitamin D supplement.
I still have chronic insomnia and feel tired all the time.
It looks and feels to me that I am going in the right direction.
Grateful for advice on how these results should be interpreted, and whether an additional change in medication should be considered. The NHS only discuss results if they are outside normal ranges - and all my results appear to be in the normal range.
Thanks in advance.
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TY_004
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Which brand of levothyroxine were you taking for 75mcg
Which brand are you taking for 125mcg
That was a large increase in dose in one go
Usually dose is increased by 25mcg maximum per day
Was test done as recommended early morning, ideally just before 9am, only drink water between waking and test and last dose levothyroxine 24 hours before test
Has insomnia started since increasing dose
Do you take your Levo waking in morning or last thing at night
If you’re not currently taking any B vitamins then consider starting
With serum B12 result below 500, (Or active B12 below 70) recommended to be taking a separate B12 supplement
A week later add a separate vitamin B Complex
Then once your serum B12 is over 500 (or Active B12 level has reached 70), you may be able to reduce then stop the B12 and just carry on with the B Complex.
If Vegetarian or vegan likely to need ongoing separate B12 few times a week
Thorne Basic B recommended vitamin B complex that contains folate, but they are large capsules. (You can tip powder out if can’t swallow capsule) Thorne can be difficult to find at reasonable price, should be around £20-£25. iherb.com often have in stock. Or try ebay
IMPORTANT......If you are taking vitamin B complex, or any supplements containing biotin, remember to stop these 5-7 days before ALL BLOOD TESTS , as biotin can falsely affect test results
In week before blood test, when you stop vitamin B complex, you might want to consider taking a separate folate supplement (eg Jarrow methyl folate 400mcg) and continue separate B12 until serum B12 over 500 or Active B12 over 70
Post discussing how biotin can affect test results
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