<prompt> All are done in quadruple test in downs syndrome except:AFPHCGPAPPinhibin-A  <response>: Ref: Dutta Textbook of Obstetrics 5th ed pg 493Explanation:Triple TestMS AFPLnconjugated estrio! HCG Quadruple TestMS AFPUE3HCGInhibin-AIntegrated TestNTPAPP-AHCGDowns SyndromeIncreased Inhibin -AIncreased HCGDecreased MSAFPDecreased PAPPDecreased UE3 