You've received your Thyroglobulin blood Test results, but you may still be uncertain about whether they fall within the normal range. Continue reading this section to gain clarity on whether your results are within the expected range or not.
What Does thyroglobulin blood test Results Mean?
The results of a Thyroglobulin Test may vary based on the labs, the testing methods used, and the standard reference ranges set by the labs. Also, the results of the test can be affected by the presence of thyroglobulin antibodies in the blood, which can interfere with the test and cause a false thyroglobulin level.
3 to 40 ng/mL is considered as the Thyroglobulin normal range. [1]
Anything below this normal range might indicate that your thyroid cancer treatments have been successful or there has been no relapse at the moment.
Surgical interventions are leveraged to eliminate healthy as well as cancerous cells from the thyroid gland responsible for releasing Thyroglobulin protein. If your Thyroglobulin levels remain high or unchanging even after treatment measures for Thyroid cancer or other disorders, it might mean that the treatment is not yielding the desired results. This may also mean that the cancer is progressing and has progressed to neighboring body organs.
If your thyroglobulin levels were initially below the normal range following treatment but subsequently increased, it could indicate a potential relapse of cancer.
Periodic Thyroglobulin Lab Testing is highly recommended for you to stay vigilant and seek necessary preventive, treatment, and management measures.
What Medical Conditions Can Cause High Thyroglobulin Levels?
Elevated thyroglobulin levels can be indicative of various conditions related to the thyroid gland. Conditions that might cause your Thyroglobulin levels to surge include:
- Any disorder or cancer of the follicular cells in the Thyroid gland
- Thyroid Cancer
- The presence of Thyroid nodules
- Genetic defects
- Viral infections
- Excess iodine consumption
- Stress
- Goiter
- Thyroiditis
- Destruction of Thyroid follicles due to Thyroid nodules
What Medical Conditions Can Cause Low Thyroglobulin Levels?
Lower than normal Thyroglobulin levels usually occur after complete removal of Thyroid tissues and cancerous tissues. However, the Thyroglobulin levels must be assessed periodically to diagnose the relapse of Thyroid cancer or any other disorder.
Here are some conditions that can cause low thyroglobulin levels:
- Hypothyroidism
- Iodine Deficiency
- Congenital Hypothyroidism