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Total thyroxin in the blood
Medical expert of the article
Last reviewed: 19.11.2021
T 4 (thyroxine) - the main hormone of the thyroid gland. Its concentration in the blood exceeds that of T 3 by 60 times. The elimination half-life is 5-7 days.
The reference values (norm) of the concentration of total T 4 (thyroxine) in serum
|
Age |
T 4, nmol / l |
|
Newborns: |
95-168 |
|
0-5 days |
152-292 |
|
11-15 days |
126-214 |
|
> 15 days |
93-186 |
|
Children: | |
|
1-5 years |
94-194 |
|
5-10 years |
83-172 |
|
Adults 10-60 years old | |
|
Men's |
59-155 |
|
Women |
71-142 |
|
> 60 years |
65-138 |