Understanding Your Medical Test: A Complete Patient Guide to Testing, Procedures, and Results Explained

This test is a laboratory procedure that measures specific substances in your body to help your doctor evaluate your overall health, screen for certain conditions, monitor an ongoing illness, or guide important treatment decisions.

The androstenedione test measures the amount of androstenedione, a steroid hormone, in your body fluid (typically blood serum). Androstenedione is produced by the adrenal glands and, in women, by the ovaries. In men, it is also produced by the testes. This hormone serves as a precursor (building block) for testosterone and estrogen, the primary male and female sex hormones.

Your doctor may order this test to investigate symptoms you are experiencing, confirm or rule out a suspected diagnosis, track how well a current treatment is working, or establish a baseline before starting a new medication or procedure.

Your healthcare provider may order an androstenedione test if you are experiencing symptoms of hormone imbalance. In women, this may include irregular menstrual periods, excessive hair growth (hirsutism), acne, or difficulty becoming pregnant. In men, it may help evaluate early or delayed puberty. The test is also used to help diagnose certain conditions affecting the adrenal glands or ovaries/testes, such as polycystic ovary syndrome (PCOS), adrenal tumors, or congenital adrenal hyperplasia.

In most cases, a trained healthcare professional collects a small sample of blood, urine, or other body fluid at a clinic or laboratory. The sample is then analyzed with specialized equipment, and the collection process usually takes only a few minutes.

A healthcare professional will collect a blood sample from a vein in your arm using a small needle. The sample is then sent to a laboratory for analysis. You may need to fast (not eat or drink anything except water) for several hours before the test, as instructed by your healthcare provider. Certain medications, including birth control pills, hormone replacements, and steroids, may affect your results, so be sure to inform your doctor about all medications you are taking.

Your results will be compared with established reference ranges, and values outside these ranges may point to a condition that needs further evaluation. Your doctor will interpret the numbers alongside your history and symptoms, so review the report together and ask about anything unclear.

Normal androstenedione levels vary based on age, sex, and the laboratory that performs the test. Your healthcare provider will interpret your results in the context of your symptoms and other test findings. Elevated levels may indicate conditions such as PCOS, adrenal hyperplasia, or adrenal tumors. Low levels may be associated with adrenal insufficiency or certain genetic conditions. Always discuss your specific results with your healthcare provider.