Androstenedione

You should get an androstenedione test if you have excess facial or body hair, severe acne, hair thinning, irregular periods, or difficulty conceiving, especially when PCOS is suspected. It is also recommended for early or delayed puberty in children, ambiguous genitalia in newborns, suspected CAH or adrenal tumors, and for monitoring CAH treatment.

Fasting is usually not required for an androstenedione test, but give your sample in the morning (around 7–10 AM), when levels peak. Women should test on days 2–5 of the menstrual cycle. Inform your doctor about steroids, oral contraceptives, hormone therapy, or CAH treatment, as these can affect results.

No, fasting is usually not required for an androstenedione test. You can eat and drink normally before giving your sample. However, a morning sample (around 7–10 AM) is preferred, and women should ideally test on days 2–5 of the menstrual cycle. Some labs may advise fasting, so follow their instructions.