Testosterone (free) + SHBG + estradiol for men
This blood test provides insight into your hormone balance by measuring important values such as testosterone, estradiol and SHBG. Hormones play an essential role in regulating bodily processes such as libido, fat distribution and muscle mass. The examination is suitable for men and women and helps identify possible hormonal imbalances.
This blood test consists of:
- Testosterone free (ISSAM)
- SHBG (Sex Hormone Binding Globulin)
- Albumin
- Testosterone
- Estradiol
Testosterone is the main male sex hormone and plays a crucial role in the development of male sexual characteristics and sperm production. Most of testosterone is bound to SHBG, making it not biologically active. This test measures both the free, biologically active form of testosterone and the bound form.
SHBG is produced by the liver and transports testosterone and estradiol in inactive form through the body. The amount of SHBG affects how much testosterone is freely available. In men, testosterone is produced mainly in the testes, while women produce estradiol mainly in the ovaries. An abnormal SHBG level may indicate hormonal imbalances.
The role of estradiol in men:
Although testosterone is often seen as the hormone of choice for men, estradiol also plays an important role. Research shows that estradiol not only affects libido, but also correlates with fat distribution and muscle mass. Reduced estradiol levels can lead to weight gain and a decrease in sexual interest. It is known that part of testosterone is converted to estradiol, which is very important for hormonal balance.
The maximum testosterone value reported is: >510 nmol/L.
