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Help me understand my results

I recently had my thyroid tested but I'm not sure what my results mean. Can anyone help?

Thyroid-stimulating hormone (TSH) - 3.35mIU/L
Free thyroxine (FT4) - 20pmol/L

Thanks

JP
2 Responses
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649848 tn?1534633700
COMMUNITY LEADER
What's the reference range for the Free T4? Ranges vary from lab to lab so have to come from your own lab report.  

Also, what if any, symptoms do you have?  Are you currently on a replacement thyroid hormone medication?  If so, what medication/dosage and how long have you been on it?
Helpful - 0
1 Comments
Thanks for replying.

The reference range was 0 to 30 pool/L.

I used to be medicated for hyperthyroidism but haven’t had treatment for years as doc said I was only borderline.
649848 tn?1534633700
COMMUNITY LEADER
Do you have any symptoms that could be attributed to, either, hyper or hypothyroidism?  

Have you ever had thyroid antibodies done to determine if you have an autoimmune thyroid condition - either Hashimoto's Thyroiditis or Graves Disease?  

Hashimoto's is, typically, associated with hypothyroidism, but early stages can be characterized by periods of hyper, alternating with periods of normal or hypo.  Graves Disease is always associated with hyperthyroidism.  

Antibody tests for Hashimoto's are Thyroid Peroxidase Antibodies (TPOab) and Thyroglobulin Antibodies (TgAb).  The definitive test for Graves is Thyroid Stimulating Immunoglobulin (TSI).  
Helpful - 0
2 Comments
Thanks so much - my GP generally doesn't do the detailed tests, I might have to request those.
These aren't necessarily considered "detailed" tests - they simply make sense to get an accurate diagnosis.  One has to know what condition you might be dealing with in order to properly treat.  

I'm guessing your doctor has never tested Free T3 either?  Free T3 is the thyroid hormone that your individual cells actually use.  It should be tested every time you have TSH and Free T4 tested.  

I realize that I haven't really answered your initial question but that's because I was trying to get more information.  I understand now that you don't have anymore information to give me, which is unfortunate.  

I realize that I still haven't answered your original question regarding your tests (TSH and Free T4), but I'm getting there.  I was hoping you had more testing information, but now that I realize you don't, the only information I need is what symptoms, if any, have... Once you tell me that, I'll tell you what I think about your labs.
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