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A 26-year-old female asked:

They did a t3. blood test on me and my thyroid hormone came out 0.914 ..... is that bad ....????? i feel tired .... lazy... gain weight

1 doctor answer • 1 doctor weighed in
Dr. Rebecca Gliksman
Dr. Rebecca Gliksmananswered
Internal Medicine 40 years experience
Thyroid: The usual tests done for thyroid are TSH ( thyroid stimulating hormone) and T4 -thyroid hormone, T3 is the active form but is checked less frequently. . If the 0.914 is T4 it is low ( labs differ on the range) but you need TSH as well , if TSH is high you likely would need thyroid hormone replacement which many people are on. f/u /w/ endocrinologist
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Last updated May 27, 2017

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