Biochemical analytes measured in the triple test are all the following Except
Correct Answer: Inhibin A
Description: Second-Trimester ScreeningPregnancies with fetal Down syndrome are characterized by lower maternal serum AFP levels--approximately 0.7 MoM, higher hCG levels--approximately 2.0 MoM, and lower unconjugated estriol levels--approximately 0.8 MoM. This triple test can detect 61 to 70 percent of Down syndrome.Levels of all three markers are decreased in the setting of trisomy 18.Ref: William&;s Obstetrics; 24th edition; Chapter 14
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Gynaecology & Obstetrics
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