ATI RN
Fetal Development NCLEX Questions Questions
Question 1 of 5
What is the purpose of the ovum’s zona pellucida?
Correct Answer: A
Rationale: The zona pellucida is a protective layer surrounding the ovum (egg cell). One of its primary functions is to prevent multiple sperm from fertilizing the egg by only allowing one sperm to penetrate and fertilize the ovum. This is crucial for ensuring that the resulting embryo has the correct genetic material (46 chromosomes) and does not have an abnormal number of chromosomes, which could lead to developmental issues. The zona pellucida acts as a physical barrier that helps to maintain the genetic integrity of the offspring.
Question 2 of 5
What patient statement indicates the need for further education about amniocentesis?
Correct Answer: D
Rationale: Amniocentesis is performed transabdominally, not transcervically, to obtain amniotic fluid.
Question 3 of 5
A patient who is 16 weeks pregnant with her first baby asks how long it will be before she feels the baby move. Which is the nurse’s best answer?
Correct Answer: D
Rationale: Maternal perception of fetal movement (quickening) usually begins between 17 and 20 weeks after conception. Because this is her first pregnancy, movement is felt toward the later part of the 17 to 20 weeks. “The baby is moving, but you can’t feel it yet” may be alarming to the woman. “Some babies are quiet and you don’t feel them move” is a true statement; the fetus’ movements are not strong enough to be felt until 17 to 20 weeks; however, this statement does not answer the woman’s concern. Fetal movement should be felt between 17 and 20 weeks; if movement is not perceptible by the end of that time, further assessment will be necessary.
Question 4 of 5
The nurse works in an infertility clinic and is interviewing a male patient whose partner has been unable to conceive. Which finding obtained during a health history will cause the nurse greatest concern?
Correct Answer: B
Rationale: A vasectomy reversal can lead to the development of antibodies that reduce sperm motility, impacting fertility.
Question 5 of 5
During formation of the germ layer in the embryo, which layer gives rise to the nervous system?
Correct Answer: A
Rationale: The ectoderm forms the nervous system, along with the skin and sensory organs.