Is a quad test showing trisomy and NTD a serious concern?
Patient: hello mam i have done the Quad test but in the report Ultra Slund Details are like........the reportable range for trisomy 21, trisomy 18 and NTD is from 1:50 to The reported value which is either 1:50 or below 1:250, 1:100 and 1:50 for trisomy 21, Trisomy 18 and NTD respectively, indicates high risk please suggest Doctor: Hi,  The risk of Trisomy 21 and Trisomy 18 increases when the ratio is less than 1 in 250. 1 in 50 indicates that the risk of Trisomy is high, but quad test is a screening test. To confirm I would suggest amniocentesis. Amniocentesis will tell us the baby's karyotyping thereby confirming whether baby is affected or  not.  Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Swathi Kamidi, OBGYN