Bioavailable Testosterone calculated using the Vermeulen equation.
Bioavailable Testosterone: Males Ages 20 – 69, 1.1 – 4.0 ng/mL; Female Ages 20 – 80, 0.01 – 0.19 ng/mL. All other non-specified age ranges do not have established reference ranges. Refer to Total Testosterone (male, female or pediatric) and Sex Hormone Binding Globulin Handbook entries for reference ranges.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
1 - 4 days
- Free Testosterone
- Testosterone Binding Index
- Bioavailable Testosterone
- Testosterone, Bioavailable and Total
Refer to Total Testosterone (male, female or pediatric) and Sex Hormone Binding Globulin Handbook entries. There is no additional specimen required for the Bioavailable Testosterone calculation.
Male: Collect blood in an SST tube. Centrifuge, aliquot serum into a plastic vial, and refrigerate.
Female and Pediatric: Collect blood in a red top tube. Centrifuge, aliquot serum into a plastic vial, and refrigerate
Panel includes Total Testosterone, Calculated Bioavailable Testosterone and Sex Hormone Binding Globulin.