• Total, Free and Bioavailable Testosterone w/Sex Hormone Binding Globulin
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Total, Free and Bioavailable Testosterone w/Sex Hormone Binding Globulin

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

$99.00
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This comprehensive testosterone test evaluates total, free, and bioavailable testosterone levels, along with Sex Hormone Binding Globulin (SHBG). Understanding these levels is crucial for assessing hormonal balance and overall health. Total testosterone includes all forms of the hormone, while free testosterone represents the active form that influences various bodily functions. Bioavailable testosterone accounts for the portion that is not bound to SHBG, making it accessible for use by the body. This test is ideal for individuals experiencing symptoms like low energy, reduced libido, or mood changes, providing a detailed picture of hormonal health.

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About This Test

Reason 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

Test Preparation

  • Fasting (Overnight) required for 10-12 hours


Please Note: We recommend overnight fasting and an early morning blood draw for all tests, even if no special preparation is required. Remember, it is OK to drink plenty of water. Drinking water helps hydrate you and makes it easier for the phlebotomist to obtain your blood sample.

Test Type and Method

Test Type:

  • Blood


Test Method:

  • In-person Blood Draw

Post-Test Notes

  • Once your specimen is collected, test results are typically processed and available within a few business days. Processing times may vary depending on the test. Your results will be delivered in a clear, easy-to-understand report. If any values fall outside the expected range, you may receive a follow-up call from an independent healthcare coordinator.

Lab Testing is Simple, Fast, and Convenient

Choose the Individual Test or Lab Panel that suits your health needs. You’ll receive your lab requisition within 24 hours. Visit any of the 3,000+ Quest Diagnostics centers using the button below. Once your sample is collected, your results will be securely delivered via email within 7–10 days.

View Quest Draw Locations

Lab Testing is Simple, Fast, and Convenient

Choose the Individual Test or Lab Panel that suits your health needs. You’ll receive your lab requisition within 24 hours. Visit any of the 3,000+ Quest Diagnostics centers using the button below. Once your sample is collected, your results will be securely delivered via email within 7–10 days.

View Quest Draw Locations