Diagnostic Testing Overview: What This Test Is, How It Works, and Why Your Doctor May Order It

This test is a diagnostic procedure that provides your healthcare team with important information about your overall health. It helps determine whether certain organs or body systems are functioning normally and can detect early signs of illness before symptoms become noticeable. The results allow your provider to make well-informed decisions about your diagnosis, treatment options, and ongoing medical care.

The amniotic fluid androstenedione test measures the amount of androstenedione, a steroid hormone, in the amniotic fluid. Androstenedione is produced by the adrenal glands and serves as a building block for other important hormones like testosterone and estrogen. During pregnancy, this test helps doctors understand how the baby's adrenal glands are developing and functioning.

The test is performed by a trained healthcare professional in a clinic, hospital, or laboratory setting. Depending on what your provider has ordered, it may involve collecting a small sample of blood, urine, or other body fluid, or using specialized equipment. Most procedures take only a few minutes, and your care team will explain each step and answer your questions before the test begins.

This test is performed using a sample of amniotic fluid collected during amniocentesis. During amniocentesis, a thin needle is used to draw a small amount of amniotic fluid from the womb. The fluid sample is then sent to a laboratory where androstenedione levels are measured using specialized equipment.

Your doctor may recommend this test for several reasons: to identify the cause of symptoms you are experiencing, to monitor a condition you already have, to check how well a current treatment is working, or to screen for health problems before they cause symptoms. The results give your healthcare provider objective information that supports an accurate diagnosis and a personalized treatment plan.

Your doctor may recommend this test if there are concerns about: fetal adrenal gland development, certain genetic conditions affecting hormone production, potential congenital adrenal hyperplasia (CAH), or ambiguous genitalia detected during prenatal ultrasound. The test helps healthcare providers assess fetal health and plan appropriate management.