What Is the Normal Range for Thyroglobulin Levels?

What Is the Normal Range for Thyroglobulin Levels?

The Toronto General Hospital considers normal thyroglobulin levels to be -34 micrograms per liter if the patient's thyroid is still present, or -3 micrograms per liter if the patient's thyroid has been removed, according to MyThyroid.com. Increased thyroglobulin levels may be an indicator of thyroid disease or cancer.

A thyroglobulin test is an effective tumor marker to monitor thyroid cancer treatment and possible thyroid cancer recurrence, says Lab Tests Online, since the most common types of thyroid cancers frequently produce thyroglobulin and increase levels in the blood. However, some diseases affecting hormones or the thyroid gland directly alter thyroglobulin levels in the blood, so elevated thyroglobulin levels do not necessarily indicate cancer.