General
Synonym/Acronym:
Tg.
Common Use:
To evaluate thyroid gland function related to disorders such as tumor, inflammation, structural damage, and cancer.
Specimen:
Serum (1 mL) collected in a red- or tiger-top tube.
Normal Findings:
(Method: Chemiluminescent enzyme immunoassay)
| Age | Conventional Units | SI Units (Conventional Units × 1) |
|---|
| Premature infant | | |
| 1 day | 107–395 ng/mL | 107–395 mcg/L |
| 3 days | 49–163 ng/mL | 49–163 mcg/L |
| Cord blood | 5–65 ng/mL | 5–65 mcg/L |
| 1 day | 6–93 ng/mL | 6–93 mcg/L |
| 10 days | 9–148 ng/mL | 9–148 mcg/L |
| 1 mo | 17–63 ng/mL | 17–63 mcg/L |
| 7–12 yr | 20–50 ng/mL | 20–50 mcg/L |
| 12–18 yr | 9–27 ng/mL | 9–27 mcg/L |
| Adult–older adult | 0–50 ng/mL | 0–50 mcg/L |
Thyroglobulin has been found in Davis's Lab & Diagnostic Tests
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