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Total, Free and Bioavailable Testosterone w/Sex Hormone Binding Globulin (Mens)

Total, Free and Bioavailable Testosterone w/Sex Hormone Binding Globulin (Mens)

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The Total Testosterone test measures the total amount of testosterone in your blood, including both bound and free forms. Testosterone is a key hormone responsible for various functions in both men and women, including muscle mass, energy levels, and sexual health. Abnormal testosterone levels can lead to a variety of symptoms, such as fatigue, low libido, and mood swings. This test is essential for anyone looking to understand their hormonal balance, particularly those experiencing symptoms related to low testosterone levels or andropause in men.

Reasons to Check It:

"For an accurate testosterone, it is best to measure it first thing in the morning. 

Testosterone is measured several ways: total, free and bioavailable:

  • Total testosterone is all testosterone in the blood. Not all testosterone is available for use; therefore, bioavailable testosterone may be measured
  • Bioavailable testosterone is the amount of testosterone that is loosely bound to albumin, but can detach and become available quickly
  • Free testosterone is the amount of testosterone in the blood that is not bound to anything and is immediately available for use

Bioavailable and free testosterone are important measurements for correctly assessing the testosterone that is available for the body to use." - Dr. Alan Hopkins

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