Final answer:
Amniocentesis is a prenatal diagnostic test that checks for genetic abnormalities in the fetus by examining the fetal cells in the amniotic fluid. It helps to detect conditions such as Down syndrome, cystic fibrosis, and spina bifida.
Step-by-step explanation:
The most appropriate statement that the LPN can make to the pregnant client about the purpose of amniocentesis is c) It checks for genetic abnormalities. Amniocentesis is a prenatal diagnostic test that involves extracting a small amount of amniotic fluid from the mother's abdomen to examine the fetal cells for genetic defects. It is commonly used to detect conditions such as Down syndrome, cystic fibrosis, and spina bifida.