201-216, DOI:10.1038/s41574-022-00783-3
To find out which type of hyperthyroidism is present, a doctor may run a 24-hour radioactive iodine uptake test and look for thyroid antibodies (against TSH-receptors, thyroid peroxidase, thyroid stimulating immunoglobulin, thyrotropin-binding inhibiting immunoglobulin, and thyroglobulin)
The Root Cause Approach to Ensuring Optimal Levels of Carnitine If youve already been diagnosed and are taking thyroid hormone therapy yet are still suffering from fatigue, muscle weakness, or other symptoms its time to look at common triggers for your symptoms, including focusing in on nutrient deficiencies such as carnitine and its cofactors (as mentioned earlier in this article)
Bull Exp Biol Med 2002;133:2746
The choice depends on medical eligibility, insurance coverage, and availability