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Thyroid

I just got my test results back and wont be going to the dr till next week.  Does anyone understand these?

Free Triiodothyronine
3.3 pg/mL

Free Thyroxine
0.72 ng/dL

**Thyroid Stimulating Hormone (TSH)
0.01 uIU/mL

**Thyroglobulin Level
0.5 NG/ML

**Thyroid Peroxidase Antibodies
215 IU/ML

**Anti-Thyroglobulin Antibody
170 IU/ML

I know they did not come back normal but I dont know what it means.  
**Are the tests I am most concerned about.
Best Answer
Avatar universal
Well from your symptoms and test results I'd say that you definitely need to raise your Free T4 levels and your Free T3 levels.  Your Free T4 is way low in the range, yet your Free T3 is around the middle of the range.,  In the words of a good thyroid doctor, "The free T3 is not as helpful in untreated persons as the free T4 because in the light of a rather low FT4 the body will convert more T4 to T3 to maintain thyroid effect as well as is possible. So the person with a rather low FT4 and high-in-range FT3 may still be hypothyroid. However, if the FT4 is below 1.3 and the FT3 is also rather low, say below 3.4 (range 2 to 4.4 at LabCorp) then its likely that hypothyroidism is the cause of a person's symptoms."

Beyond the need for thyroid med, I would like to see you get some additional tests done.  Because of your extremely low TSH, with relatively low Free T4 and Free T3, that is very puzzling and I would like to  see you test for TSI, which is a test for Graves'.  I know I am grasping for straws, but could you be one of those lucky people who have both Hashi's and Graves'?  Other than that I am left with grasping at another straw.  Could you have both central and primary hypothyroidism?  Or is there some other variable that is causing you to have the low TSH with low FT4 and FT3?   I'll have to do some searching for anything other possibility.  

One thing further is that your low Vitamin D, while taking high doses of D made me wonder if you have been tested for calcium levels?  If not, I would do that also.  

For now, if your symptoms are tolerable for a short time I would wait and try to get those tests done and see where that takes us.  
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Avatar universal
Im over weight!  I was always smaller till all this started going on.  UGH...
Helpful - 1
Avatar universal
WOW,  You know what you are talking about!!!  Will you be my Dr.?  LOL...  My Vitamin D just hit 30 with me taking 100,000 a week.  2 50,000 pills a week.  So, she is keeping me at 100,000 to see if it will go up more.  I have had my TSH taken every 3 month but it usually will be low normal...I have had it taken 2 weeks ago and it was .02 and last week along with all the other tests and it went down to .01.  I am just so confused by all of this!  
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Avatar universal
You seem to have a mixed bag of symptoms versus your test results.  I agree with zoe that some of your are sometimes related to being hyper; however, you also have symptoms that are more often related to being hypo.  Also, your test results for Free T4, Free T3, TPO ab and TG ab indicate Hashimoto's Thyroiditis, consistent with hypothyroidism.  With Hashi's the autoimmune system erroneously identifies the thyroid gland as foreign to the body and produces antibodies to attack and eventually destroy the gland.   As this proceeds, the output of thyroid hormone is diminished and the Free T4 and Free T3 drop, and in response the TSH increases, in an effort to stimulate more thyroid hormone production.  

As stated, if we looked at nothing else but your symptoms, Free T4 and Free T3, and antibodies tests, it would clearly indicate Hashimoto's Thyroiditis; however, that scenario doesn't completely fit because of the low TSH.  Which made me wonder if you have ever had a TSH test done previously?  If so, what were results?  Usually a low TSH with low Free T4 and Free T3 is indicative of a dysfunction of the hypothalamus/pituitary system called central hypothyroidism, but then you have the antibodies of Hashi's, which is primary hypothyroidism.  Puzzling.    

I think you really need to do some further testing.  As a first step I suggest  an ultrasound to determine the condition of your thyroid gland, and look for nodules that sometimes form with Hashi's.  I would also ask for a re-test of TSH to confirm prior results.  

Regardless of further results I think you are going to need to start on thyroid med adequate to raise your Free T4 to the middle of the range, and your Free T3 high enough in its range to relieve symptoms, typically in the upper third of the range.   Along with that I would test for Vitamin D, B12 and ferritin.  Hypo patients are frequently too low in the ranges for those.  D should be about 55 , B12 in the very upper end of its range, and ferritin should be about 70 minimum.
Helpful - 0
Avatar universal
Free Triiodothyronine
3.3 pg/mL
*2.3-4.6

Free Thyroxine
0.72 ng/dL

80.61-1.36

Thyroid Stimulating Hormone (TSH)
0.01 uIU/mL
*0.34-5.60 L

Thyroglobulin Level
0.5 NG/ML
*2.0-35.0 L

Thyroid Peroxidase Antibodies
215 IU/ML
*< 35 H

Anti-Thyroglobulin Antibody
170 IU/ML
*< 20 H

*The normal range

I am having heart palputations, I have ringing in the ears, I feel like I can hear my heart all the time, I have headaches, I have tired, I forget the easiest things ever....I dont feel like I am sick....I feel off, if that makes sense.
Helpful - 0
1 Comments
It sound like your Hyperthyroid
Avatar universal
Even more important than the test results are signs/symptoms that you may have.  Please tell us about those.

Also, please post the reference ranges for those test results, as shown on the lab report.  
Helpful - 0
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