medium · NCLEX-RN Health Promotion and Maintenance

A pregnant client at 11 weeks gestation is a known carrier of cystic fibrosis and is concerned about the status of her fetus. Her partner's carrier status is unknown.

Which prenatal procedure should the nurse identify as the earliest diagnostic option for this client?

  1. Chorionic villus sampling (CVS)
  2. Maternal serum alpha-fetoprotein (MSAFP) screening
  3. Amniocentesis
  4. Percutaneous umbilical blood sampling (PUBS)

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