Thyroxin binding globulin

Template:Search infobox Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Normal range of TBG or Thyroxin Binding Globulin 14-28 ng/liter (240-480 nmol/liter)

## Differential Diagnosis[edit | edit source]

In alphabetical order. [1] [2]

Increased

* Acute hepatitis
* Acute intermittant porphyria
* Biliary Cirrhosis
* Chronic active hepatitis
* Endocrine
* Estrogen therapy
* Estrogen producing tumors
* Familial hyperthyroxinemia
* Heroin
* Hypothyroidism
* Infection
* Metabolic
* Methadone
* Newborns
* Oral contraceptives
* Perphenazine
* Pregnancy
* Tamoxifen

Decreased

* Acromegaly
* Anabolic steroids
* Androgens
* Androgen producing tumor
* Cachexia
* Chronic liver disease
* Cushing's Disease
* Cirrhosis
* Glucocorticoids
* Hypothyroidism
* L-asparaginase
* Malnutrition
* Nephrotic Syndrome
* Obstructive Biliary Disease
* Salicylates
* Severe systemic illness
* Surgical stress
* Thyroid depressants

## References[edit | edit source]

1. ↑ Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:77 ISBN 1591032016
2. ↑ Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:68 ISBN 140510368X

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