Thyroxin Binding Globulin - Serum

Thyroxin Binding Globulin - Serum

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This test is used to measure the patient's TBG levels, a protein necessary for transporting the thyroid hormone in the blood.

This Test Includes

Thyroxin Binding Globulin

Test Instructions

Total parameters available: 1

Parameter Names:

  • Thyroxin Binding Globulin - Serum

Test Instructions/Precautions:

  • Alcohol: Please abstain from alcohol before the test
  • Medication :Any pre-existing medication should only be stopped after consultation with the referring Physician
  • Fluids Allowed : Water only

Reports

Soft Copy (Portal/Email) : If the sample is collected before 12 noon then the report will get delivered as per Reporting Time / Maximum TAT (Turn Around Time) indicated with the test. For samples collected after 12 Noon, 12 hours may be added to the Report Turn Around TimeHard Copy : Delivered at home upon request. A small convenience fee may apply.

Why it is Done

Determination of thyroxine-binding globulin levels are particularly useful for cases in which total thyroid hormone levels do not correlate with the thyrometabolic status, most commonly with pregnancy or the use of contraceptive steroids.

What is this test

Thyroxine binding globulin (TBG) is the high-affinity serum binding protein for thyroxine and triiodothyronine. Normally, the thyroid adjusts to changing concentrations of TBG by producing more or less thyroid hormone to maintain a constant level of metabolically important free hormone.