Test results

[IndiLucky]

Hi All - I have had the results of my thyroid/vitamin tests back today - was wondering if someone could simplify them for me?

CRP HS = 0.98

Ferritin = 33.9

Folate - sample error - need to redo

Vitamin B12 - Active = 86.7

Vitamin D = 1.7

TSH = 1.7

Free T3 = 4.71

Free Thyroxine = 22.4

Thyroglobulin Antibodies =

12.2

Thyroid Peroxidase Antibodies = 36.6

Everything was green except for Thyroid Peroxidase Antibodies (high) Free thyroxine (high) and Vitamin D (low)

So as i understand it my thyroid is over active?? If that's the case I'm very confused as I do not have any symptoms of overactive thyroid - i am putting on weight not losing it! I am on 50cmg levothyroxine.

Thanks

[greygoose]

No. Why would you think your thyroid was over-active? If you were, your TSH would be very low - about 0.01 or something - and your FT4 and FT3 well over-range.

With a TSH of 1.7, you are far from over-active. But, we can't tell you anything more about your results because you haven't given us the ranges. Ranges vary from lab to lab, so we need those that go with your results.

[IndiLucky in reply to greygoose]

oh i see sorry, I didn't realise. Where would I find the range?

[greygoose in reply to IndiLucky]

They should be in brackets after the results - e.g.

TSH 1.7 (0.2 - 4.5)

For example.

[IndiLucky in reply to IndiLucky]

actually - i think I have found it - so for the free thyroxine (t4) the "normal range" they state is 12-22. Mine is 22.4 which they've said is on the high abnormal end of the scale and it says

What might a high result mean?

Raised free T4 can indicate an overactive thyroid. High levels of FT4 tend to lead to excess of the other thyroid hormone, T3, resulting in an overactive metabolism

THYROID PEROXIDASE ANTIBODIES - normal range is less than 34. Mine is 36.6 - high abnormal.

What might a high result mean?

High levels of thyroid peroxidase antibodies mean that your thyroid gland is under attack from your own immune system. Elevated thyroid peroxidase antibodies are seen in both Hashimoto's thyroiditis, which causes an underactive thyroid, and Graves' disease, which causes your thyroid to be overactive.

Hence why i think my thyroid is now overactive?

[SlowDragon Administrator]

I think you may have typed vitamin D result incorrectly?

Your ferritin level is low. Ask GP for full iron panel test for anaemia

Your very slightly raised TPO antibodies confirms cause of your hypothyroidism is due to autoimmune thyroid disease also called hashimoto’s

Can you add ranges on Ft4 and Ft3 results

[SlowDragon Administrator]

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 .

Last dose of Levothyroxine 24 hours prior to blood test. (taking delayed dose immediately after blood draw).

This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip, best not mentioned to GP or phlebotomist)

Is this how you did this test?

Assuming this is Medichecks test

Ft4 is very slightly over range

But Ft3 at 4.71 (3.1-6.8) is only 43% through range

So your conversion is poor

Improving low vitamin levels helps improve conversion of Ft4 to Ft3

[IndiLucky]

Sorry yes, Vitamin level 44 - their range states below 50 is low.

I had my iron levels checked back in the summer as I was having breathing issues and they said it could be anaemia but that all came back normal - should i push for another test?

I did follow the thyroid test instructions fully and yes didn't eat or drink anything - did the test first thing in the morning before 9am and took my dose of levothyroxine after i did the draw.

TSH range = 0.27 - 4.2

FREE T3 range = 3.1 - 6.8

FREE THYROXINE range = 12 - 22