What Birth Defects Cannot Be Detected During Pregnancy?

What Birth Defects Cannot Be Detected During Pregnancy? These tests cannot detect all possible conditions, but can often identify: chromosomal conditions, such as Down syndrome, Trisomy 13 and Trisomy 18. some birth defects such as congenital heart conditions and malformed kidneys. How do doctors test for birth defects? Screening tests for birth defects are blood