<prompt> Triple test includes all the following EXCEPT?AFPHCGInhibinEstradiol  <response>: Triple test includes: AFP HCG Estradiol Quadruple test: also include Inhibin All women are offered screening for Down syndrome in their 2nd trimester by means of 4 maternal serum tests free b-human chorionic gonadotropin , unconjugated estriol, inhibin, and a-fetoprotein. This is known as the quad screen; it can detect up to 80 of Down syndrome pregnancies compared to 70 in the triple screen. 