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How is inhibin a used in testing?
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Dr. Danae Steele
Obstetrics & Gynecology - Maternal Fetal Medicine
In brief: For Down syndrome
Inhibin a is one of 4 protein levels that are tested for in the "quad screen", a blood test performed in the 2nd trimester of pregnancy to calculate the risk that a woman is carrying a baby with down syndrome.
The levels of inhibin a have been found to be about twice as high in women carrying babies affected with down syndrome as in women with normal babies.

In brief: For Down syndrome
Inhibin a is one of 4 protein levels that are tested for in the "quad screen", a blood test performed in the 2nd trimester of pregnancy to calculate the risk that a woman is carrying a baby with down syndrome.
The levels of inhibin a have been found to be about twice as high in women carrying babies affected with down syndrome as in women with normal babies.
Dr. Danae Steele
Dr. Danae Steele
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