Nokea
What patient statement indicates the need for further education about amniocentesis?
- A. “It can be used to test for neural tube defects.”
- B. “It is performed between 15 and 20 weeks’ gestation.”
- C. “It is performed using a sterile needle to withdraw a sample of amniotic fluid.”
- D. “The sample can be obtained using a transcervical approach.”
Correct Answer: D
Rationale: Amniocentesis is performed transabdominally, not transcervically, to obtain amniotic fluid.
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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?
- A. The patient is a passionate gardener.
- B. The patient had a vasectomy reversed.
- C. The patient rides a bicycle daily to work.
- D. The patient is concerned about infertility.
Correct Answer: B
Rationale: A vasectomy reversal can lead to the development of antibodies that reduce sperm motility, impacting fertility.
Match each term with its description. Embryoblast
- A. None
- B. None
- C. The fertilized egg as it separates into 2 parts, the embryoblast and trophoblast.
- D. None
Correct Answer: C
Rationale: Embryoblast is part of the developing embryo.
What is the purpose of carrier screening in the first trimester?
- A. to check the positioning of the fetus
- B. to assess for chromosomal abnormalities in the fetus
- C. to measure the heart rate of the fetus
- D. to identify potential genetic disorders that parents may carry
Correct Answer: D
Rationale: Carrier screening identifies genetic disorders parents may carry, which can affect the baby. It does not check positioning, heart rate, or chromosomal abnormalities directly.
During formation of the germ layer in the embryo, which layer gives rise to the nervous system?
- A. Ectoderm
- B. Mesoderm
- C. Endoderm
- D. Entoderm
Correct Answer: A
Rationale: The ectoderm forms the nervous system, along with the skin and sensory organs.
At approximately ___ weeks of gestation, lecithin is forming on the alveolar surfaces, the eyelids open, and the fetus measures approximately 27 cm crown to rump and weighs approximately 1110 g.
- A. 20
- B. 24
- C. 28
- D. 30
Correct Answer: C
Rationale: These milestones of human development occur at approximately 28 weeks.