A full thyroid blood panel is the best way to check your thyroid levels and determine whether you might have a thyroid condition. The signs and symptoms of hypothyroidism and hyperthyroidism can vary greatly. It's always a good idea to get checked out by a physician if you feel like something is off. It is also worth taking a look at your thyroid hormones in the context of the Hypothalamus- Pituitary- Thyroid (HPT) axis.
There are several thyroid hormones that the thyroid gland produces:
Full Thyroid Blood Panel
A full thyroid blood panel consists of:
- Free T3 (active thyroid hormone)
- Free T4 (inactive thyroid hormone, which is in the thyroid medication Levothyroxine or common brand name Synthroid)
- Reverse T3 (an inactive variant of T3 hormone that could be a contributing factor to ongoing symptoms)
- TSH (thyroid stimulating hormone)
- Thyroglobulin Antibodies (Tg) (helpful in identifying conditions like Hashimoto's Thyroiditis and important in ongoing monitoring of thyroid cancer)
- Thyroid Peroxidase Antibodies (TPOAB) (helpful in identifying antibodies in your blood and identifying autoimmune conditions like Hashimoto's Thyroiditis)
At the minimum, it is important that you get Free T3, Free T4 and your TSH levels checked to identify that there are no conversion issues and that your thyroid levels are within the optimal ranges.
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