<prompt> Triple test for diagnosis of downs syndrome includes all of the following except :b - HCGa- FetoproteinSerum HPL levelSerum oestriol level  <response>: Answer is C Serum HPL levels Serum HPL is not included as a parameter within the triple test fir downs syndrome Triple Test : It is used in the detection of Downs syndrome. Q In an affected pregnancy : - level of MSAFP is decreased Q - level of oestriol is decreased Q - levels of hCG is High increased Q This test only gives a risk ratio and result is considered positive if risk ratio is 1 : 2 For confirmation Amniocentesis has to be doneQ It is performed between 16 to 18 weeks.Q 