Nokea
What are functions of the amniotic fluid? (Select one that doesn't apply.)
- A. Prevents congenital amputations and amniotic bands.
- B. Enables fetal musculoskeletal development.
- C. Protects the fetus from maternal infections.
- D. Maintains fetal hydration.
Correct Answer: C
Rationale: Amniotic fluid supports fetal development but does not protect against maternal infections.
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What karyotype would the nurse anticipate for a patient with Klinefelter’s syndrome?
- A. XO
- B. XXY
- C. XYY
- D. XXX
Correct Answer: B
Rationale: The correct answer is B: XXY. In Klinefelter's syndrome, individuals have an extra X chromosome, resulting in a karyotype of 47,XXY. This leads to physical and cognitive characteristics associated with the syndrome. Choice A (XO) represents Turner syndrome, which involves a missing X chromosome. Choices C (XYY) and D (XXX) are not associated with Klinefelter's syndrome as they involve extra Y and X chromosomes respectively, leading to different syndromes altogether.
Which student statement requires further instruction?
- A. It protects against cervical cancer and genital warts.
- B. It is recommended for boys and girls, age 11-12.
- C. It is an effective treatment for precancerous cervical changes.
- D. It requires 2-3 doses.
Correct Answer: C
Rationale: The HPV vaccine is preventive, not a treatment for existing conditions.
Fewer fetal movements than expected suggest possible:
- A. Intrauterine fetal growth restriction.
- B. Inaccurate gestational age dating.
- C. Rapid intrauterine fetal maturation.
- D. Reduced placental perfusion with fetal hypoxia.
Correct Answer: D
Rationale: Reduced placental perfusion or fetal hypoxia can lead to fewer fetal movements.
The nurse is educating the pregnant person on the effects of the placenta hormones. What information does the nurse include in the teaching about relaxin? Select all that apply.
- A. makes the ligaments softer and more flexible
- B. helps decrease peripheral vascular resistance
- C. plays a role in the appearance of the linea nigra
- D. helps the skin stretch
Correct Answer: C
Rationale: The correct answer is C because relaxin plays a role in the appearance of the linea nigra during pregnancy. Linea nigra is a dark line that runs from the belly button to the pubic bone caused by hormonal changes. Choices A, B, and D are incorrect. Relaxin primarily affects the cervix and pelvic ligaments, making them softer and more flexible to prepare for childbirth, but it does not help decrease peripheral vascular resistance or directly aid in skin stretching.
Match each term with its description. Blastocyst
- A. None
- B. None
- C. Part of the blastocyst that will develop into the placenta.
- D. None
Correct Answer: C
Rationale: Blastocyst contains structures forming the placenta.