In spite of the prevalence and encouraging of this test on all pregnant women, it is strictly a screening that may indicate a “need” for more, some of it, invasive testing. Yikes!

Some pregnant women have elevated levels of HCG (evaluated in more recent versions of the test) because they are pregnant with more than one. Babies who actually have a neural tube defect, such as spina bifida, or chromosomal defect like Downs, are in the minority of births.

It’s rather creepy the amount of encouragement that is going into testing for problems that only affect a small percentage of the population. And elimination of any group, no matter how small a percentage of the population, should be setting off bells and whistles.