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Thyroxine-Binding Globulin

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

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

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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Bladh, Mickey Lynn., and Anne M. Van Leeuwen. "Thyroxine-Binding Globulin." Davis's Lab & Diagnostic Tests, 7th ed., F.A. Davis Company, 2017. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425213/all/Thyroxine_Binding_Globulin.
Bladh ML, Van Leeuwen AM. Thyroxine-Binding Globulin. Davis's Lab & Diagnostic Tests. 7th ed. F.A. Davis Company; 2017. https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425213/all/Thyroxine_Binding_Globulin. Accessed April 24, 2019.
Bladh, M. L., & Van Leeuwen, A. M. (2017). Thyroxine-Binding Globulin. In Davis's Lab & Diagnostic Tests. Available from https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425213/all/Thyroxine_Binding_Globulin
Bladh ML, Van Leeuwen AM. Thyroxine-Binding Globulin [Internet]. In: Davis's Lab & Diagnostic Tests. F.A. Davis Company; 2017. [cited 2019 April 24]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425213/all/Thyroxine_Binding_Globulin.
* Article titles in AMA citation format should be in sentence-case
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 -