Thyroxine-Binding Globulin

Thyroxine-Binding Globulin is a topic covered in the Davis's Lab & Diagnostic Tests.

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General

Synonym/Acronym:
TBG.

Common Use:
To evaluate thyroid hormone levels related to deficiency or excess to assist in diagnosing disorders such as hyperthyroidism and hypothyroidism.

Specimen:
Serum collected in a gold-, red-, or red/gray-top tube.

Normal Findings:
(Method: Immunochemiluminometric assay [ICMA])

AgeConventional UnitsSI Units (Conventional Units × 10)
0–1 wk3–8 mg/dL30–80 mg/L
1–12 mo1.6–3.6 mg/dL16–36 mg/L
14–19 yr1.2–2.5 mg/dL12–25 mg/L
Greater than 20 yr1.3–3.3 mg/dL13–33 mg/L
Pregnancy, third trimester4.7–5.9 mg/dL47–59 mg/L
Oral contraceptives1.5–5.5 mg/dL15–55 mg/L

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Citation

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TY - ELEC T1 - Thyroxine-Binding Globulin ID - 425213 A1 - Bladh,Mickey Lynn, AU - Van Leeuwen,Anne M, BT - Davis's Laboratory & Diagnostic Tests UR - https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425213/all/Thyroxine_Binding_Globulin PB - F.A. Davis Company ET - 7 DB - Nursing Central DP - Unbound Medicine ER -