A Woman's Cousin Gave Birth to an Infant with a Congenital

Multiple Choice

A woman's cousin gave birth to an infant with a congenital heart anomaly.The woman asks the nurse when such anomalies occur during development.Which response by the nurse is most accurate?

A) "We don't really know when such defects occur."
B) "It depends on what caused the defect."
C) "Defects occur between the third and fifth weeks of development."
D) "They usually occur in the first 2 weeks of development."