ATI RN
Conception and Fetal Development NCLEX Questions Quizlet Questions
Question 1 of 5
The placenta allows exchange of oxygen, nutrients, and waste products between the mother and fetus by:
Correct Answer: A
Rationale: Fetal capillaries within the chorionic villi are bathed with oxygen-rich and nutrient-rich maternal blood within the intervillous spaces.
Question 2 of 5
The most critical time of development during pregnancy is during organogenesis, where teratogens can cause congenital abnormalities. When is this time period?
Correct Answer: C
Rationale: Organogenesis occurs during the embryonic period, where teratogens have the highest impact.
Question 3 of 5
Choose appropriate client teaching related to maternal serum alpha-fetoprotein (MSAFP) analysis.
Correct Answer: A
Rationale: Abnormal MSAFP levels require further investigation with more specific tests.
Question 4 of 5
What is the most vulnerable time for teratogen exposure?
Correct Answer: B
Rationale: The embryonic period (3-8 weeks) is when organogenesis occurs, making it highly sensitive to teratogens.
Question 5 of 5
A student nurse is learning about prenatal testing for fetal genetic disorders and neural tube defects. What prenatal tests are screening tests in the second trimester? Select all that apply.
Correct Answer: B
Rationale: Screening tests include multiple markers and alpha-fetoprotein, while amniocentesis and CVS are diagnostic.