Understanding Your Medical Test: What It Is, Why It Is Done, and How to Get Ready

This test is a medical procedure that gives your healthcare provider important information about how your body is working. It can help detect a health condition, confirm or rule out a diagnosis, or monitor a problem you already know about.

The 11-Hydroxyandrostenedione (11-OHA) test measures the amount of a specific androgen hormone in your blood. 11-Hydroxyandrostenedione is produced primarily by the adrenal glands, which are small glands located on top of each kidney. This hormone is an intermediate product in the synthesis of other steroid hormones and plays a role in the body's hormonal balance.

Your provider orders this test to gather clues about symptoms you may be having, check for conditions that do not always cause obvious signs, measure how well a current treatment is working, or establish a baseline of your overall health for future comparison.

Your doctor may order this test to evaluate how well your adrenal glands are functioning. It is commonly used to help diagnose conditions that affect adrenal hormone production, such as congenital adrenal hyperplasia (a genetic disorder affecting hormone production), adrenal tumors, or other disorders of the adrenal glands. The test may also be used to investigate symptoms like abnormal hair growth, early puberty, or hormonal imbalances.

The test is performed by a trained member of your care team in a laboratory, clinic, or hospital setting. Depending on the type of test, it may involve providing a small sample of blood, urine, or other tissue, or it may use imaging equipment, and most tests take only a short time to complete.

A healthcare professional will draw a small sample of blood from a vein in your arm using a needle. The blood sample will be sent to a laboratory for analysis. The procedure is quick and usually takes only a few minutes. You may feel a slight sting when the needle is inserted or removed.

Follow any specific instructions your provider gives you before your appointment. You may be asked to fast for a certain number of hours, avoid certain foods, drinks, or medications, drink extra water, or schedule the test at a particular time of day. Tell your care team about all medications, supplements, and allergies you have, and bring your insurance card along with any questions you want to ask.

Your doctor will provide specific instructions. In general, you may need to fast (not eat or drink anything except water) for a certain period before the test. Some medications can affect hormone levels, so inform your doctor about all medications, supplements, or herbal remedies you are taking. Follow all instructions provided by your healthcare provider.