| Sex . | Age . | Reference range . | TSH (IU/mL) . | T4 (ng/mL) . | T3 (ng/mL) . | rT3 (ng/mL) . | FT4 (pmol/L) . | FT3 (pmol/L) . |
|---|---|---|---|---|---|---|---|---|
| . | . | . | 0.68-7.6 . | 54-152 . | 0.87-2.25 . | 0.10-0.48 . | 12.8-22.7 . | 3.68-6.98 . |
| M | 60 | 7.7 | 97 | 1.17 | 0.42 | 18.9 | 2.9 | |
| M | 27 | 7.7 | 103 | 1.14 | 0.33 | 17.1 | 5.1 | |
| F | 23 | 7.8 | 108 | 1.55 | 0.43 | 16.4 | 5.2 | |
| F | 30 | 7.8 | 102 | 1.67 | 0.21 | 15.2 | 5.2 | |
| M | 24 | 8.5 | 99 | 1.37 | 0.27 | 17.6 | 6.0 | |
| M | 37 | 8.7 | 94 | 1.63 | 0.21 | 16.4 | 5.2 | |
| F | 23 | 8.9 | 179 | 2.50 | 0.26 | 18.1 | 5.0 | |
| M | 30 | 9.6 | 70 | 1.14 | 0.11 | 14.6 | 5.8 | |
| F | 37 | 10.3 | 54 | 0.91 | 0.14 | 12.0 | 3.6 | |
| F | 29 | 10.8 | 112 | 2.49 | 0.25 | 16.7 | 6.2 | |
| F | 22 | 16.5 | 78 | 1.34 | 0.13 | 11.8 | 4.7 | |
| M | 25 | 47.1 | 50 | 1.15 | 0.15 | 10.8 | 5.4 |
| Sex . | Age . | Reference range . | TSH (IU/mL) . | T4 (ng/mL) . | T3 (ng/mL) . | rT3 (ng/mL) . | FT4 (pmol/L) . | FT3 (pmol/L) . |
|---|---|---|---|---|---|---|---|---|
| . | . | . | 0.68-7.6 . | 54-152 . | 0.87-2.25 . | 0.10-0.48 . | 12.8-22.7 . | 3.68-6.98 . |
| M | 60 | 7.7 | 97 | 1.17 | 0.42 | 18.9 | 2.9 | |
| M | 27 | 7.7 | 103 | 1.14 | 0.33 | 17.1 | 5.1 | |
| F | 23 | 7.8 | 108 | 1.55 | 0.43 | 16.4 | 5.2 | |
| F | 30 | 7.8 | 102 | 1.67 | 0.21 | 15.2 | 5.2 | |
| M | 24 | 8.5 | 99 | 1.37 | 0.27 | 17.6 | 6.0 | |
| M | 37 | 8.7 | 94 | 1.63 | 0.21 | 16.4 | 5.2 | |
| F | 23 | 8.9 | 179 | 2.50 | 0.26 | 18.1 | 5.0 | |
| M | 30 | 9.6 | 70 | 1.14 | 0.11 | 14.6 | 5.8 | |
| F | 37 | 10.3 | 54 | 0.91 | 0.14 | 12.0 | 3.6 | |
| F | 29 | 10.8 | 112 | 2.49 | 0.25 | 16.7 | 6.2 | |
| F | 22 | 16.5 | 78 | 1.34 | 0.13 | 11.8 | 4.7 | |
| M | 25 | 47.1 | 50 | 1.15 | 0.15 | 10.8 | 5.4 |
Bold font indicates value outside the empirical reference range.
In this healthy, young population, high serum TSH may be due to hypothyroidism when accompanied by low serum T4 (or FT4) and/or T3 (or FT3). Very rare causes theoretically include TSH-producing pituitary tumors or genetic resistance to THs.
| Sex . | Age . | Reference range . | TSH (IU/mL) . | T4 (ng/mL) . | T3 (ng/mL) . | rT3 (ng/mL) . | FT4 (pmol/L) . | FT3 (pmol/L) . |
|---|---|---|---|---|---|---|---|---|
| . | . | . | 0.68-7.6 . | 54-152 . | 0.87-2.25 . | 0.10-0.48 . | 12.8-22.7 . | 3.68-6.98 . |
| M | 60 | 7.7 | 97 | 1.17 | 0.42 | 18.9 | 2.9 | |
| M | 27 | 7.7 | 103 | 1.14 | 0.33 | 17.1 | 5.1 | |
| F | 23 | 7.8 | 108 | 1.55 | 0.43 | 16.4 | 5.2 | |
| F | 30 | 7.8 | 102 | 1.67 | 0.21 | 15.2 | 5.2 | |
| M | 24 | 8.5 | 99 | 1.37 | 0.27 | 17.6 | 6.0 | |
| M | 37 | 8.7 | 94 | 1.63 | 0.21 | 16.4 | 5.2 | |
| F | 23 | 8.9 | 179 | 2.50 | 0.26 | 18.1 | 5.0 | |
| M | 30 | 9.6 | 70 | 1.14 | 0.11 | 14.6 | 5.8 | |
| F | 37 | 10.3 | 54 | 0.91 | 0.14 | 12.0 | 3.6 | |
| F | 29 | 10.8 | 112 | 2.49 | 0.25 | 16.7 | 6.2 | |
| F | 22 | 16.5 | 78 | 1.34 | 0.13 | 11.8 | 4.7 | |
| M | 25 | 47.1 | 50 | 1.15 | 0.15 | 10.8 | 5.4 |
| Sex . | Age . | Reference range . | TSH (IU/mL) . | T4 (ng/mL) . | T3 (ng/mL) . | rT3 (ng/mL) . | FT4 (pmol/L) . | FT3 (pmol/L) . |
|---|---|---|---|---|---|---|---|---|
| . | . | . | 0.68-7.6 . | 54-152 . | 0.87-2.25 . | 0.10-0.48 . | 12.8-22.7 . | 3.68-6.98 . |
| M | 60 | 7.7 | 97 | 1.17 | 0.42 | 18.9 | 2.9 | |
| M | 27 | 7.7 | 103 | 1.14 | 0.33 | 17.1 | 5.1 | |
| F | 23 | 7.8 | 108 | 1.55 | 0.43 | 16.4 | 5.2 | |
| F | 30 | 7.8 | 102 | 1.67 | 0.21 | 15.2 | 5.2 | |
| M | 24 | 8.5 | 99 | 1.37 | 0.27 | 17.6 | 6.0 | |
| M | 37 | 8.7 | 94 | 1.63 | 0.21 | 16.4 | 5.2 | |
| F | 23 | 8.9 | 179 | 2.50 | 0.26 | 18.1 | 5.0 | |
| M | 30 | 9.6 | 70 | 1.14 | 0.11 | 14.6 | 5.8 | |
| F | 37 | 10.3 | 54 | 0.91 | 0.14 | 12.0 | 3.6 | |
| F | 29 | 10.8 | 112 | 2.49 | 0.25 | 16.7 | 6.2 | |
| F | 22 | 16.5 | 78 | 1.34 | 0.13 | 11.8 | 4.7 | |
| M | 25 | 47.1 | 50 | 1.15 | 0.15 | 10.8 | 5.4 |
Bold font indicates value outside the empirical reference range.
In this healthy, young population, high serum TSH may be due to hypothyroidism when accompanied by low serum T4 (or FT4) and/or T3 (or FT3). Very rare causes theoretically include TSH-producing pituitary tumors or genetic resistance to THs.
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