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Low TSH with High T3
An_226880 posted:
Given that Kaiser Dr's are slightly indifferent; I would like to inquire of the group if anyone knows what this might mean for me.

My blood work reports came back over the week end ( no, my Doctor has not contacted me - they just upload them online ) and my TSL level is so low it almost does not register; yet my T3 level is high.
Is this likely to indicate a thyroid problem that could has caused a 50 pound weight gain in 10 months, extreme hair loss, dry eyes, insomnia?
I am reluctant to contact my Dr for fear I will be dismissed; or thought to be imagining things. I am worn out, and really need to figure out what happened to me these past 10 months.
beanie_gene responded:
I just looked thyroid levels on WebMD. This is what was posted. Thyroid hormone tests Total thyroxine (T4): 11.8-22.6 micrograms per deciliter (mcg/dL) or 152-292 nanomoles per liter (nmol/L) in newborns up to 14 days old
6.4-13.3 mcg/dL (83-172 nmol/L) in babies and older children
5.4-11.5 mcg/dL (57-148 nmol/L) in adults
Free thyroxine (FT4): 0.7-2.0 ng/dL nanograms per deciliter (ng/dL) or 10-26 picomoles per liter (pmol/L)
Total triiodothyronine (T3): 32-250 ng/dL (0.49-3.85 nmol/L) in newborns up to 14 days old
82-245 ng/dL (1.3-3.8 nmol/L) in babies and older children
80-200 ng/dL (1.2-3.1 nmol/L) in adults
Free triiodothyronine (FT3): 260-480 pg/dL (4.0-7.4 pmol/L)
Free thyroxine index (FTI): 7.5-17.5 in newborns up to 7 days old
5.0-12.8 in babies and older children
4.2-13.0 in adults

Not sure if this helps at all, but may be helpful if you wanted to discuss with your doctor. My thought is that you do have a thyroid problem. I woud check out some of the articles on Webmd. I just typed in TSH. Information is always helpful when talking with your doctor. This way they know what you are talking about, and have done some research. Good luck.
beanie_gene responded:
This is what I found for TSH levels through webmd

Thyroid-stimulating hormone (TSH) Adults: 0.4-4.5 mIU/L or 0.4-4.5 mU/L (SI units)
Babies: 3-18 mIU/L or 3-18 mU/L (SI units)

High valuesHigh TSH levels may be caused by:
  • An underactive thyroid (hypothyroidism ). Hashimoto's thyroiditis is the most common cause of primary hypothyroidism.
  • A pituitary gland tumor that is making too much TSH. This is uncommon.
  • Not taking enough thyroid hormone medicine for treatment of an underactive thyroid gland.
Low valuesLow TSH levels may be caused by:
  • An overactive thyroid gland (hyperthyroidism ). Causes of hyperthyroidism include Graves' disease , a type of goiter (toxic multinodular goiter), or a noncancerous (benign) tumor called a toxic nodule.
  • Damage to the pituitary gland that prevents it from making TSH (a condition called secondary hypothyroidism).
  • Taking too much thyroid medicine for treatment of an underactive thyroid gland.
  • Pregnancy during the first trimester .
Hope this also helps out

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