Nokea
A pregnant woman at 25 weeks' gestation tells the nurse that she dropped a pan last week and her baby jumped at the noise. Which response by the nurse is most accurate?
- A. That must have been a coincidence; babies can't respond like that.
- B. The fetus is demonstrating the aural reflex.
- C. Babies respond to sound starting at about 24 weeks of gestation.
- D. Let me know if it happens again; we need to report that to your midwife.
Correct Answer: C
Rationale: Babies respond to sound starting at about 24 weeks of gestation.
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The most basic information a maternity nurse should have concerning conception is that:
- A. Ova are considered fertile 48 to 72 hours after ovulation.
- B. Sperm remain viable in the woman's reproductive system for an average of 12 to 24 hours.
- C. Conception is achieved when a sperm successfully penetrates the membrane surrounding the ovum.
- D. Implantation in the endometrium occurs 6 to 10 days after conception.
Correct Answer: D
Rationale: After implantation, the endometrium is called the decidua.
The prenatal nurse is discussing the functions of the placenta with a pregnant person at 6 weeks’ gestation. What statement by the pregnant person indicates to the nurse the patient understands the information?
- A. The placenta filters hormones to support the pregnancy.
- B. The placenta is responsible for fetal waste disposal.
- C. The placenta prevents all viruses from harming the fetus.
- D. The placenta regulates glucose levels in the fetus.
Correct Answer: B
Rationale: The placenta facilitates waste disposal and oxygen transfer. It does not filter all viruses or regulate fetal glucose.
The nurse is conducting a staff in-service on multifetal pregnancy. Which statement regarding dizygotic twin development should the nurse include in the teaching session?
- A. Dizygotic twins arise from two fertilized ova and are the same sex.
- B. Dizygotic twins arise from a single fertilized ovum and are always of the same sex.
- C. Dizygotic twins arise from two fertilized ova and may be the same sex or different sexes.
- D. Dizygotic twins arise from a single fertilized ovum and may be the same sex or different sexes.
Correct Answer: C
Rationale: Dizygotic twins, also known as fraternal twins, result from the fertilization of two separate eggs by two sperm cells. Therefore, they have different genetic makeups and can be the same sex or different sexes. This is in contrast to monozygotic twins (identical twins), who arise from a single fertilized egg that splits into two embryos, resulting in twins of the same sex and identical genetic makeup. It is important for the nurse to include this information in the staff in-service on multifetal pregnancy to ensure accuracy and understanding among the attendees.
What is the portion of the endometrium beneath the blastocyst known as?
- A. Decidua basalis
- B. Chorionic villi
- C. Decidua vera
- D. Decidua capsularis
Correct Answer: A
Rationale: The decidua basalis is the portion of the endometrium beneath the blastocyst.
A 36-year-old G2P0 patient has been told that she has hydramnios. She asks what might have caused this and if it will cause complications. What is the nurse’s correct response?
- A. It is a decrease in the amount of amniotic fluid that occurs as a result of a neural tube defect.
- B. It is an increase in the amount of amniotic fluid, which can compress the baby’s cord.
- C. It is an increase in amniotic fluid that can occur as a result of having diabetes mellitus.
- D. It is a decrease in the amount of amniotic fluid that can cause preterm labor.
Correct Answer: C
Rationale: Hydramnios involves increased amniotic fluid, often linked to diabetes mellitus and may compress the umbilical cord.