Description of blood Analysis: 

Serum Cortisol (S. Cort) is the primary glucocorticoid hormone produced by the adrenal cortex in response to stimulation by Adrenocorticotropic Hormone (ACTH). Often referred to as the “stress hormone,” it plays a vital role in regulating metabolism, reducing inflammation, and maintaining blood pressure. Under normal conditions, cortisol follows a strict diurnal rhythm, with levels peaking in the early morning and falling to their lowest point around midnight. In diagnostics, measuring cortisol is essential for assessing the health of the adrenal glands and the pituitary-hypothalamic axis. Elevated or suppressed levels can indicate serious endocrine disorders that affect the body’s ability to respond to physical or emotional stress.

What does the analysis represent?

• Purpose: To quantify the hormone responsible for managing stress, regulating blood sugar, and controlling the immune response.
• Primary Application: Diagnosing Cushing’s syndrome (excess), Addison’s disease (deficiency), and monitoring adrenal or pituitary disorders.
• Method: Immunoassay using a venous blood sample.

Recommendations for the Test (General)

• Timing: It is critical to have the blood drawn in the morning (usually between 7:00 AM and 10:00 AM) to capture the peak level.
• Fasting: A 12-hour fast is required (water is permitted).
• Rest: Avoid intense physical exertion and psycho-emotional stress for at least 30 minutes before the procedure.
• Specific Rules: Refrain from alcohol consumption for 24 hours prior to the test.
• For women: Use of oral contraceptives should be reported to the physician, as they can artificially raise total cortisol levels.

What can affect the results?

• Factors altering levels: Use of glucocorticoid medications (pills, inhalers, or skin creams) can significantly suppress natural cortisol production.
• Conversely: Pregnancy, acute illness, high fever, and chronic sleep deprivation are known to increase cortisol concentrations.

When to take the test?

• Recommendations: This test is requested when symptoms of adrenal imbalance appear, such as unexplained weight gain, muscle weakness, skin thinning, or chronic fatigue.
• Preparation: The test should be scheduled when the patient is in a state of stable health, as acute infections can cause a temporary surge in hormone levels.

How to interpret the results?

• The interpretation of your laboratory results is the exclusive responsibility of a qualified physician.
• A cortisol value should not be viewed in isolation; it is most meaningful when compared to the time of collection and other markers like ACTH.
• Your doctor will evaluate the result to determine the functional reserve of your adrenal glands.
• Only a professional medical review can integrate these findings with your clinical history to determine if therapeutic intervention is necessary.

Possible further investigations

• ACTH Test: To determine if the cause of a cortisol imbalance lies in the pituitary gland or the adrenals.
• Dexamethasone Suppression Test: To assess the body’s feedback response to synthetic steroids.
• 24-Hour Urinary Free Cortisol: To measure the total daily production of the hormone.
• Endocrinology Consultation: To develop a comprehensive hormonal health strategy.

When does the next step make sense?

• If cortisol levels are found to be outside the reference range, the findings are reviewed by a physician to perform dynamic tests or imaging of the adrenal/pituitary glands.
• All medical decisions are personalized based on the patient’s overall risk profile.

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