Good afternoon all,
I've just received my blood results from medichecks, as attached below with doctors commentary. Does this all make sense and should my Levothyroxine dose be lowered as a result?
I would really appreciate any comments or advice.
THYROID STIMULATING HORMONE: 1.1 mIU/L 0.27- 4.20
FREE THYROXINE: *22.64 pmol/L 12.00 - 22.00
TOTAL THYROXINE(T4): 98.9 nmol/L 59.00 - 154.00
FREE T3: 4.81 pmol/L 3.10 - 6.80
THYROGLOBULIN ANTIBODY: 20.530 IU/mL 0.00 - 115.00
THYROID PEROXIDASE ANTIBODIES: 16.15 IU/mL 0.00 - 34.00
VITAMIN B12: 265 pmol/L 140.00 - 724.00
FOLATE (SERUM): *3.8 ug/L 3.89 - 26.80
25 OH VITAMIN D: *22.1 nmol/L 50.00 - 200.00
CRP -HIGH SENSITIVITY: 0.4 mg/L 0.00 - 5.00
FERRITIN: 267.3 ug/L 30.00 - 400.00
We note your history of total thyroidectomy and use of levothyroxine 200 μg. You have told us that you are taking this test to investigate symptoms of an underactive thyroid that have persisted despite your thyroid stimulating hormone being in the normal range.
Your thyroid stimulating hormone is in the lower half of the normal range whilst your free thyroxine is a little high and your total thyroxine and free T3 are normal. This suggests that you are taking the correct dose of levothyroxine, possibly even a little too much. As the increase in free thyroxine is only slight I recommend arranging a thyroid check in 3 months to assess the trend, sooner if you develop symptoms of an overactive thyroid.
Your thyroid autoantibodies are normal.
You have normal levels of vitamin B12
You have low serum folate. I recommend checking your red cell folate to assess whether this is significant.
Your vitamin D levels show that you have vitamin D deficiency. This can mimic an underactive thyroid and will cause feelings of tiredness and body pain.
We recommend supplementing with 80 mcg (3200 iu) of vitamin D per day for twelve weeks. It is important to test your vitamin D levels regularly - many people in the UK are insufficient or deficient in this vital vitamin. We suggest that you repeat your vitamin D test in 8 -12 weeks to ensure that your levels have returned to normal. Once your levels have returned to normal then you can decrease your vitamin D supplementation to 10 mcg (400 iu) per day.
Your CRP level is normal, indicating normal levels of inflammation in the body.
Your ferritin level is normal.