Hormone Inhibin A

Results

The inhibin A test is done to measure the amount of this hormone in a pregnant woman's blood to see if the baby may have Down syndrome. Inhibin A is made by the placenta during pregnancy.

Normal results

Normal results means the level of the hormone inhibin A is low or negative.

Abnormal results

Abnormal results means the level of the hormone inhibin A is above normal or positive.

All abnormal results will need to be discussed with your doctor.

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Author:	Jan Nissl, RN, BS	Last Updated: October 12, 2006
Medical Review:	Renée M. Crichlow, MD - Family Medicine Adam Husney, MD - Family Medicine Siobhan M. Dolan, MD, MPH - Reproductive Genetics Renee H. Martin, PhD - Medical Genetics
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