Thyroxine Binding Globulin (TBG) Test
🔬 Thyroid Function Screening
₹2999
MRP ₹3800
Sample Time: 4:30 PM
Report: 7th Working Day
Report: 7th Working Day
About this Test:
The Thyroxine Binding Globulin (TBG) Test measures the level of TBG, a protein that binds and transports thyroid hormones (T3 and T4) in the bloodstream.
✔ Helps evaluate abnormal thyroid function test results ✔ Differentiates between true thyroid disorders and abnormal binding protein levels ✔ Useful in diagnosing hormonal imbalance during pregnancy, liver disease, or long-term medication use ✔ Provides insight into both high and low TBG conditions
The Thyroxine Binding Globulin (TBG) Test measures the level of TBG, a protein that binds and transports thyroid hormones (T3 and T4) in the bloodstream.
✔ Helps evaluate abnormal thyroid function test results ✔ Differentiates between true thyroid disorders and abnormal binding protein levels ✔ Useful in diagnosing hormonal imbalance during pregnancy, liver disease, or long-term medication use ✔ Provides insight into both high and low TBG conditions
Frequently Asked Questions (FAQ)
Q1: What is the Thyroxine Binding Globulin (TBG) Test?
A TBG test measures the level of a protein in the blood that binds to thyroid hormones (T3 and T4). It helps determine if thyroid hormones are being correctly transported in the body.
A TBG test measures the level of a protein in the blood that binds to thyroid hormones (T3 and T4). It helps determine if thyroid hormones are being correctly transported in the body.
Q2: Why is the TBG test done?
This test is recommended when thyroid function test results are abnormal or inconsistent. It helps detect whether the imbalance is due to gland problems or protein transport issues.
This test is recommended when thyroid function test results are abnormal or inconsistent. It helps detect whether the imbalance is due to gland problems or protein transport issues.
Q3: What is the normal range of TBG levels?
Normal TBG levels are usually 12–26 mg/L. However, reference ranges may differ between labs. Always consult your doctor for interpretation.
Normal TBG levels are usually 12–26 mg/L. However, reference ranges may differ between labs. Always consult your doctor for interpretation.
Q4: Do I need to prepare for the TBG test?
No fasting is required, but some medications (like steroids, estrogen, or thyroid drugs) can affect results. Inform your doctor before testing.
No fasting is required, but some medications (like steroids, estrogen, or thyroid drugs) can affect results. Inform your doctor before testing.
Q5: What does a high or low TBG level indicate?
• High TBG: May be due to pregnancy, oral contraceptives, or liver disease.
• Low TBG: May indicate hyperthyroidism, nephrotic syndrome, or protein loss.
• High TBG: May be due to pregnancy, oral contraceptives, or liver disease.
• Low TBG: May indicate hyperthyroidism, nephrotic syndrome, or protein loss.