Description of blood Analysis: 

Testosterone is the primary androgenic hormone responsible for the development of male physical characteristics and the maintenance of reproductive health, bone density, and muscle mass. In the bloodstream, testosterone exists in three forms: tightly bound to Sex Hormone-Binding Globulin (SHBG), loosely bound to albumin, and “free” (unbound). The sum of the albumin-bound and free portions is known as bioavailable testosterone, which represents the fraction of the hormone readily accessible to the body’s tissues. Measuring bioavailable testosterone provides a more accurate assessment of a patient’s actual hormonal activity than measuring total testosterone alone, especially when SHBG levels are altered by age, obesity, or liver conditions.

What does the analysis represent?

• Purpose: To quantify the total circulating testosterone and the biologically active (bioavailable) fraction to assess androgenic status.
• Primary Application: Diagnosing hypogonadism, evaluating erectile dysfunction, investigating infertility, and monitoring testosterone replacement therapy.
• Method: Calculation of bioavailable fraction based on Total Testosterone, SHBG, and Albumin levels measured via immunoassay or LC-MS/MS.

Recommendations for the Test (General)

• Timing: It is highly recommended to have blood drawn in the morning (between 7:00 AM and 10:00 AM), as testosterone levels peak during these hours.
• Fasting: A 12-hour fast is required; water is permitted.
• Rest: Avoid intense physical exertion and smoking for at least 30 minutes before the procedure.
• Specific Rules: Refrain from alcohol consumption for 24 hours prior to the test. For women, the phase of the menstrual cycle may affect results and should be noted.

What can affect the results?

• Factors altering levels: Certain medications, including glucocorticoids, opioids, and anabolic steroids, can significantly suppress levels.
• Conversely: High stress, acute illness, obesity, and chronic sleep deprivation are known to lower testosterone concentrations.

When to take the test?

• Recommendations: This test is often requested when symptoms of androgen deficiency are present or as part of a comprehensive endocrine evaluation.
• Preparation: The test should be scheduled when the patient is in a state of stable health, as acute infections or inflammatory states can cause a temporary decline in hormone levels.

How to interpret the results?

• The interpretation of your laboratory results is the exclusive responsibility of a qualified physician.
• A testosterone value should not be viewed in isolation; it is most meaningful when compared to clinical symptoms and other hormonal markers like SHBG, LH, and FSH.
• Only a professional medical review can integrate these findings with your clinical history to determine if therapeutic intervention or lifestyle changes are necessary.

Possible further investigations

• SHBG (Sex Hormone-Binding Globulin): To further clarify the transport and availability of androgens.
• LH and FSH Tests: To determine if a hormonal imbalance originates in the testes or the pituitary gland.
• Prostate-Specific Antigen (PSA): Often required before starting testosterone replacement therapy.
• Endocrinology or Urology Consultation: To develop a comprehensive hormonal health strategy.

When does the next step make sense?

• If bioavailable testosterone levels are found to be low, the findings are reviewed by a physician to determine the underlying cause and adjust medical plans.
• All medical decisions are personalized based on the patient’s overall clinical profile.

👉 If necessary, you can discuss the analysis results with a specialist such as an endocrinologist (Doctors – TAMC) or urologist (Doctors – TAMC).