Testosterone Free Test
- Category
- Men's Health
- Sample
- Blood sample taken from a vein in your arm
- Reports () Terms & Conditions Report time varies with time of sample collection.
- In 2 days
- Fasting
- No Fasting
- Age
- 10+ Years
Measures free testosterone — the small, unbound fraction that is active in the body.
Useful when total testosterone is borderline or when SHBG is abnormal (obesity, ageing, thyroid or liver disease), and in women with suspected androgen excess.
Low energy or libido, erectile problems, infertility, prostate/urinary symptoms, men over 50.
No fasting is needed. Give the sample in the morning (ideally before 10 AM), as testosterone is highest early in the day.
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Total testosterone can be misleading when binding proteins are abnormal; free testosterone shows what is available to tissues.
No fasting is needed. Give the sample in the morning (ideally before 10 AM), as testosterone is highest early in the day.
Blood sample taken from a vein in your arm.
Usually within 13–37 hours after the sample reaches the lab. You will receive the report online.