Hormone Inhibin A
The inhibin A test is done to measure the amount of this Reference hormone Opens New Window in a pregnant woman's blood to see if there is an increased chance the baby may have Reference Down syndrome Opens New Window. Inhibin A is made by the Reference placenta Opens New Window during pregnancy.
A normal result means the level of the hormone inhibin A is low, or negative. An abnormal result means the level of the hormone inhibin A is high, or positive.Reference 1 The level of the hormone must be reviewed with the other Reference quad screen blood tests.
All abnormal results will need to be discussed with your doctor.
|By:||Reference Healthwise Staff||Last Revised: Reference April 4, 2012|
|Medical Review:||Reference Sarah Marshall, MD - Family Medicine
Reference Siobhan M. Dolan, MD, MPH - Reproductive Genetics