When describing a recent medical procedure, Katrina says, "The worst part was the thought of that needle being stuck through my abdomen." Given this description, Katrina appears to have undergone a(n)

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Amniocentesis is a medical procedure that involves inserting a needle through the abdomen to extract a small sample of amniotic fluid for prenatal testing. Thus, Katrina's description of the worst part being the thought of a needle being stuck through her abdomen implies that she underwent amniocentesis. Maternal blood sampling, preimplantation genetic diagnosis, and chorionic villus sampling do not involve a needle being stuck through the abdomen.

When Describing a Recent Medical Procedure, Katrina Says, "The Worst