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Testosterone, Bioavailable

Source Blood
Mnemonic TESTOBIOFR
Specimen Requirements

This is a user pay test not covered by Alberta Health & Wellness. The patient must pay $50.00 at time of collection.
When both Bioavailable and Free Testosterone are ordered together, the patient will pay one fee of $50.00 for both tests.

1 x 3.5 mL gold top SST tube

1 mL serum

Recommend collecting blood between 07:00 and 10:00.

Specimen Handling  
Additional Information

Bioavailable Testosterone and Free Testosterone will both be reported.

The concentration of Bioavailable Testosterone is derived from a mathematical expression based on constants for the binding of Testosterone to Sex Hormone Binding Globulin and Albumin.

Testing Location Immunochemistry
Testing Frequency Weekdays
Alternate Name(s) Bioavailable Testosterone
Reference Interval

Adult male

4.0-16.0 nmol/L

Adult female

0.1-1.0 nmol/L