Testosterone Free and Total


This blood test measures Total and Free Testosterone. Testosterone is an anabolic steroid hormone, which is synthesized from cholesterol and secreted in the testes and ovaries. Small amounts of testosterone are also secreted by the adrenal glands.

Testosterone is the primary anabolic steroid that orchestrates metabolism and the restoration and regeneration of healthy tissues. Men produce approximately ten times more testosterone than women. Women however, are far more sensitive to testosterone. Testosterone levels in men may begin to decrease with age, obesity and diabetes. Symptoms of decreased levels of testosterone may include a change in libido, decreased feeling of well-being, osteopenia/osteoporosis, decreased quality of life, depression, anemia, muscle loss and cognitive decline. Testosterone has many positive health associations to include supporting protein synthesis, cardiovascular protection, improved cognitive function, reduced inflammation, increased levels of hemoglobin and hematocrit and decreased risk of Alzheimer’s. It is important to know that a zinc deficiency lowers testosterone levels. This test may help determine whether or not testosterone replacement should be considered for treatment of poor mental performance, heart disease, chronic infections, bone disease, abdominal obesity, loss of libido and depression.

Test Preparation For Optimal Results:

If possible, have the lab collected early in the morning or shortly after waking. For comparison purposes, have subsequent labs collected close to the same time.

Disclaimer: Your health care provider should evaluate a deviation from normal ranges.