Testosterone Free
TSTF
Description
"Testosterone Free" test measures the level of active, unbound testosterone in your blood. It’s commonly used to evaluate symptoms of hormonal imbalance like low libido, fatigue, or mood changes. This test is valuable for assessing infertility, hypogonadism, or hormone therapy response. Low levels may suggest endocrine dysfunction, while elevated results could point to other concerns. Your doctor may recommend hormone treatment, lifestyle changes, or further evaluation. Regular testing supports balanced hormone levels and overall metabolic health.
Category
Hormones
Procedure
Invasive
Sample Type
Blood – Serum
Units
Picograms Per Milliliter | Picomoles Per Liter
Procedure Category
Blood Draw
Test Group
Hormone Health Group, Male Health Group, Female Health Group, Complete Sex Hormone Group, Basic Cardiovascular Group
Test Group Description
Basic Cardiovascular Group: This group includes fundamental tests targeting essential markers related to cardiovascular health, providing foundational insights into cholesterol levels, blood pressure, and other key factors. Complete Sex Hormone Group: This comprehensive panel offers an extensive evaluation of sex hormone status and reproductive health, providing detailed insights into hormonal balance and function. Female Health Group: A comprehensive array of tests provides insights into various aspects of female health and wellness, aiding in the evaluation and management of overall health for females. Hormone Health Group: Its focus is on evaluating hormone levels and function, providing insights into hormonal balance and associated health conditions. Male Health Group: A comprehensive array of tests provides insights into various aspects of male health and wellness, aiding in the evaluation and management of overall health for men.
Optimal Range
For Men:
Ages 20–50 Years:
Conventional Unit: 15.00–25.00 pg/mL
SI Unit: 51.99–86.68 pmol/L
Ages 50+ Years:
Conventional Unit: Not Available
SI Unit: Not Available
For Women:
All Ages:
Conventional Unit: 1.00–2.00 pg/mL
SI Unit: 3.47–6.93 pmol/L
Normal Range
For Men:
Ages 20–50 Years:
Conventional Unit: 7.20–26.50 pg/mL
SI Unit: 24.95–91.91 pmol/L
Ages 50+ Years:
Conventional Unit: 6.60–24.00 pg/mL
SI Unit: 22.86–83.21 pmol/L
For Women:
All Ages:
Conventional Unit: 0.00–4.20 pg/mL
SI Unit: 0.00–14.56 pmol/L
Results That Differ From The Norm (Direct and Indirect Causes)
Increased levels may indicate:
Acute illness
Adrenal adenomas (Benign tumors of the adrenal gland)
Adrenal cancer
Anabolic steroids (Use of synthetic testosterone or related substances)
Congenital adrenal hyperplasia (Genetic disorder affecting adrenal gland function)
Hyperthyroidism (Overactive thyroid gland)
...
Key Reasons For Testing
Hormonal Balance: Evaluates sex hormone levels crucial for various physiological processes.
Androgen Deficiency: Diagnoses conditions like hypogonadism causing symptoms such as fatigue and low libido.
Fertility Evaluation: Assesses reproductive health and spermatogenesis in men.
Polycystic Ovary Syndrome (PCOS): Identifies elevated levels linked to PCOS and associated symptoms in women.
Treatment Monitoring: Tracks testosterone replacement therapy to ensure safety and effectiveness.
Health Status Conditions It May Be Used To Assess
Currently, this test is not directly associated with any conditions listed on the Health Status page. However, it may be included as part of a broader set of tests linked to specific health conditions.
Some Prominent Medical Labs That May Offer This Test
Please note that this particular test has not been associated with any of the listed prominent medical labs. We recommend enquiring with your private physician or nearest hospital to determine where this specific test can be performed.
References
Important Note
Any medical procedure yielding results outside the norm may be directly or indirectly linked to the conditions outlined on this page. Various factors, including genetics, medication and supplement usage, recent illnesses, pregnancy, pre-test eating, smoking, and stress, can impact the test's outcome. Additionally, factors like false positives, false negatives, inaccurate analyses, and others can influence results.
Reference ranges, which help healthcare professionals interpret medical tests, may vary depending on age, gender, and other factors. They may also differ between laboratories due to variations in instruments and methods used. Optimal ranges are designed for preventive purposes, aiming to identify trends and potential risks early, while normal ranges reflect conventional laboratory values indicating no current disease or pathology. Your healthcare practitioner may have specific reasons for testing that deviate from the usual or may interpret results differently based on individual circumstances. Proper interpretation typically involves considering clinical findings and other diagnostic tests. Hence, it is crucial to provide your healthcare professionals with a comprehensive medical history, consult with them for result interpretation, and follow their guidance for potential re-testing or additional diagnostics.
Disclaimer
This content is provided solely for informative and educational purposes. It is not intended as a substitute for medical advice or treatment from a personal physician. Regarding the interpretation of their medical test results and/or specific health questions, it is recommended that all readers and viewers consult their physicians or other qualified health professionals. The publisher is not responsible for any adverse health effects that may result from reading or following the information in this educational content. Before beginning any nutrition, supplement, or lifestyle program, all viewers, especially those taking prescription or over-the-counter medications, should consult their physician or health care practitioner.
Please note that while prominent lab names are included in this content, we cannot guarantee that these labs offer all the tests mentioned. For confirmation, individuals should contact the labs directly or consult their medical practitioners. The information provided reflects general knowledge at the time of publication and may not include recent updates or emerging research. Readers should verify details with qualified professionals to ensure the most up-to-date and accurate guidance.
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