Blood collection at collection point
- After your order you receive instructions by email
- Make an appointment at a collection point near you
Blood collection at collection point
- After your order you receive instructions by email
- Make an appointment at a collection point near you
- Blood collection at 1,000+ locations across the Netherlands
- Receive your results digitally by email
What is TBG?
Thyroxine-binding globulin (TBG) is a protein produced by the liver that plays a crucial role in the transport of thyroid hormones in the blood. TBG binds the thyroid hormones T3 and T4, allowing them to travel through the body to where they are needed.
Why should you have TBG tested?
A TBG test is useful for assessing how much TBG is available in the blood for the transport of thyroid hormones. This is particularly relevant for diagnosing thyroid disorders, evaluating hormonal imbalance, and in situations where thyroid hormone levels do not align with the patient’s clinical symptoms.
What does it indicate?
The TBG test measures the amount of thyroxine-binding globulin in the blood. An deviation from the normal TBG values can indicate problems with thyroid function or with the amount of available proteins for hormone transport.
What does a high TBG level mean?
A high TBG level may indicate an increased capacity for binding thyroid hormones, which can occur in certain genetic conditions, during pregnancy, or as a result of high estrogen levels. It may also indicate reduced thyroid function.
What does a low TBG level mean?
A low TBG level may indicate a reduced capacity for transporting thyroid hormones. This can be seen with high testosterone levels, when using certain medications, or in the case of liver disorders. It may also indicate increased thyroid function.
Frequently asked questions
Answers to what people usually want to know.
How does it work from order to result?
After ordering we generate a referral letter and email you the instructions. You pick a collection point yourself and book an appointment there. Blood is drawn at the location, processed at the lab, and your result arrives digitally.
How quickly can I get tested?
Usually very quickly. Collection points typically have slots within a few days, sometimes even same-day. It depends on how busy the location is. For a few specialist analyses we first ship collection materials, which takes a bit longer.
Do I need to book an appointment?
At most collection points yes. Some accept walk-ins. This is clearly indicated per location. You choose the location that works best for you.
