Thyroxin Binding Globulin
Thyroxin binding globulin test usually indicates the deficiency or excess of TBG. This test helps a doctor to determine ongoing or upcoming thyroid issues. The deficiency of TBG are usually accompanied with illness. A low TBG level doesn’t cause symptoms however, an illness causing the low TBG level can cause symptoms.
How to prepare for the test?
No special preparation is needed for this test.