Serum Free Testosterone

Specimen Required

3-5cc Clotted Blood or Serum

Fasting Required

Purpose of the Test

Serum free testosterone test is done to measure the level of testosterone, a male sex hormone, in the blood. It is used to evaluate the functioning of the testes, adrenal glands, and ovaries. It is also used to diagnose and monitor conditions related to low or high testosterone levels in both men and women.

When this test is required

The test may be requested if a person is experiencing symptoms related to low or high testosterone levels. It may also be ordered as a part of routine health checkups or if a person is undergoing treatment for low or high testosterone levels.

What the Test Detects

Serum free testosterone test measures the amount of unbound or free testosterone in the blood. Testosterone is a male sex hormone produced by the testes in men and ovaries and adrenal glands in women. It plays a crucial role in the development and maintenance of male sex characteristics, such as muscle mass, bone density, and sperm production.

Preparation for the Test

In general, no special preparation is required for the test. However, it is recommended to inform your doctor about any medications you are taking, as some medications may affect the testosterone levels.

Sample Requirements

A blood sample is required for the test.

Additional Notes

Testosterone levels can vary throughout the day, with the highest levels in the morning. Testosterone levels may also be affected by stress, obesity, and certain medications. It is recommended to discuss the results with your doctor to determine the underlying cause of any abnormal results and to develop an appropriate treatment plan.

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