http://www.globalrph.com/labs_t.htm
Lab (Specimen) |
Conventional Units |
SI Units |
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T3 (Triiodothyronine) Free (serum) |
0-6 years: 2.4 -4.2 pg/mL 7-17 years: 2.9-5.1 pg/mL > 18 years old: 2.3- 4.2 pg/mL |
3.5 - 6.5 pmol/L | ||||||||||||||||||||||||||||||
T3 (Triiodothyronine) Reverse (RT3) (serum) |
Birth-6 days: 600 -2500 pg/mL > 7 days old: 90 -350 pg/mL |
Adults: 0.11 - 0.32 ng/ml 0.04 - 0.29 nmol/L |
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T3 (Triiodothyronine) Total (serum) |
Cord blood: 14 -86 ng/dL 1-7 days: 100 -470 ng/dL 8- 364 days: 105 -245 ng/dL 1 -9 years: 94 -269 ng/dL 10-19 years: 102 -200 ng/dL > 20 years old: 80 -200 ng/dL |
Adults: 0.8 - 2.0 ng/ml 0.9 - 2.8 nmol/L |
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T4 (thyroxine) Free (serum) |
0.8 - 1.8 ng/dL | 10 - 23 pmol/L | ||||||||||||||||||||||||||||||
T4 (thyroxine) Total (serum) |
4.5 - 12.5 µg/dL | 58 - 161 nmol/L | ||||||||||||||||||||||||||||||
Testosterone - total (serum) |
Male: 300 to 1000 ng/dL Female: < 62 ng/dL ALT: Male: 14-15 yr: 33-585 ng/dL 16-17 yr: 185-886 ng/dL 18-39 yr: 400-1080 ng/dL 40-59 yr: 350-890 ng/dL > 60 yr: 350-720 ng/dL Tanner Stage IV: 165-854 ng/dL Tanner Stage V: 194-783 ng/dL |
Male: 6.7 - 28.9 nmol/L Female: < 2.1 nmol/L |
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Thrombin time (plasma) |
10 - 13.5 sec | 10 - 13.5 sec | ||||||||||||||||||||||||||||||
Thyroglobulin (serum) |
</= 60 ng/mL | </= 60 µg/L | ||||||||||||||||||||||||||||||
Thyroid-stimulating hormone (TSH) (serum) |
0.5 - 4.70
µIU/mL American Association of Clinical Endocrinologists guidelines changed their normal range for TSH to 0.3 - 3.04 mIU/L. |
0.5 - 4.70 mIU/L | ||||||||||||||||||||||||||||||
Thyroxine-binding globulin (TBG) (serum) |
Depending on the lab: Electrophoresis: 10 - 24 mg/dL Radioimmunoassay is used: 1.3 - 2.0 mg/dL |
Depending on the lab: Electrophoresis: 10 - 24 mg/dL Radioimmunoassay is used: 1.3 - 2.0 mg/dL |
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Thyroid Function Tests Alternative source: |
Thyroid Function Testing
Free T4 - much more useful than total T4 (e.g. interested in unbound or active form). Total T4 not commonly measured. Greatly affected by TBG. Free T4 index: indirect measure of free T4. Corrects for high/low values of TBG. Total T3: not as useful as free T3, however, may be useful in locating problems with TBG, or if looking for problems with peripheral conversion of T4 to T3. Resin T3 Uptake: if low, then TBG binding capacity is high. Opposite if high. TSH: best measure to determine thyroid function. Thyroglobulin: nonspecific test that is elevated when the thyroid gland is inflamed or enlarged. |
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Transferrin (serum) |
188 - 341 mg/dL | 1.88 - 3.41 g/L | ||||||||||||||||||||||||||||||
Triglycerides (serum) |
NML: 30-149 mg/dL Normal: < 150 mg/dL. Borderline-high: 150 to 199 mg/dL High: 200 to 499 mg/dL Very High: >499 mg/dL |
<2 .26="" dl="" mg="" mmol="" td=""> 2> | ||||||||||||||||||||||||||||||
Important Notes |
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>Unless noted, all values are for adults. >All laboratory values listed are method dependent (Methods include: immunoassay, colorimetry, electrophoresis, HPLC, etc). >Values may vary between laboratories. |
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References |
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Basic Skills in Interpreting Laboratory Data, 5th Ed. (2013) Lee M
(editor). American Society of Health-System Pharmacists, ISBN
1585283436. Drug information handbook: a comprehensive resource for all clinicians and healthcare professionals, 24th Ed. (2015) Lexi-Comp. |
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