The Penta test is a screening test for Down syndrome, spina bifida, and trisomy 18. Who has had this Done? We had it done and it came back positive. I just turned 27 on January 1st. I am 19 weeks pregnant and my numbers are 1.851 out of 85. We are now being referred to a specialist for further testing. Although my nurse assured me that it is only a screening and not to get worked up about it....I can not help but feel absolute fear and heartbreak. can someone tell me what these numbers mean? what all this means?