The new method, called chromosomal microarray technology, is providing doctors and prospective parents with more information than ever before about the genetic makeup of a baby still in the womb. But what that knowledge actually means is not always clear, causing confusion and anxiety for parents and physicians.
Though chromosomal microarray is more detailed than current tests, it sometimes reveals abnormalities on chromosomes that aren’t linked to any known condition. Many people have minor defects on their chromosomes that are harmless. Before the advent of technology like chromosomal microarray, most of those people never even knew it.
View the original article here: New genetic test for fetus can give parents more questions than answers