Testosterone is the primary male sex hormone – it plays a huge role in the development of male reproductive tissues as well as promoting secondary characteristics such as muscle and bone mass, libido and growth of bodily hair.
Sex hormone binding globulin (SHBG) is a protein produced by the liver which binds to certain hormones including: testosterone, dihydrotestosterone and oestrogen. Levels of SHBG are altered by medications, disease, sex steroids and insulin.
Free Androgen Index
This test evaluates androgen levels and is expressed as a ratio of total testosterone to sex hormone binding globulin (SHBG).
Ferritin is a blood protein which contains iron and is used to understand how much iron your body stores.
Free thyroxine helps to evaluate thyroid function and diagnose thyroid diseases, including hypo- and hyper-thyroidism. Free T4 is not affected by protein levels and is the active form of thyroxine.
Thyroid Stimulating Hormone (TSH)
The thyroid is a butterfly shaped gland found in the throat, wrapped around the windpipe just below the Adam’s apple. It produces thyroid hormones which influence essentially every organ, every tissue and every cell in the body. Thyroid Stimulating Hormone (TSH) is produced in the pituitary gland and stimulates the thyroid gland to produce thyroid hormones thyroxine (T4) and triiodothyronine (T3). TSH that is too high or too low indicates that your thyroid gland is not functioning correctly.
Levels of C-reactive protein (CRP) in the body are measured to identify potential inflammation. This can be used to identify infections or other medical conditions. Particularly, the CRP high-sensitivity (HS) test can be used to evaluate the risk of developing coronary artery disease.