Nokea
What information would the nurse include when teaching a patient newly diagnosed with Huntington disease about having children?
- A. “Both you and your partner must carry the gene for your children to get the disease.”
- B. “The gene is found on the X chromosome. Only male children have a risk of inheriting the disease.”
- C. “You have a 50 percent chance of passing the gene on to your children.”
- D. “It occurs only when the chromosomes don’t divide correctly, causing one cell to have too many chromosomes.”
Correct Answer: C
Rationale: Huntington disease is autosomal dominant, so there is a 50% chance of passing the gene to offspring.
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The nurse is explaining fetal circulation to a student. Which statement by the nurse is correct?
- A. There is an opening between the atria that allows blood to flow directly to the lungs for oxygenation.
- B. There is a shunt between the aorta and the pulmonary vein that bypasses the lungs.
- C. The ductus arteriosus allows blood to flow from the pulmonary artery to the aorta.
- D. The foramen ovale closes just before birth.
Correct Answer: C
Rationale: The ductus arteriosus allows blood to bypass the lungs, directing it from the pulmonary artery to the aorta.
The ___ is/are responsible for oxygen and carbon dioxide transport to and from the maternal bloodstream.
- A. Decidua basalis.
- B. Blastocyst.
- C. Germ layer.
- D. Chorionic villi.
Correct Answer: D
Rationale: Chorionic villi obtain oxygen and nutrients from the maternal bloodstream and dispose of carbon dioxide and waste products into the maternal blood.
A patient at 34 weeks gestation is undergoing an ultrasound. The nurse notes that the amniotic fluid is estimated at between 500 and 600 mL. Which deduction does the nurse make from this finding?
- A. Oligohydramnios is present.
- B. Fluid is normal for gestation age.
- C. Polyhydramnios has formed.
- D. Follow-up ultrasound is warranted.
Correct Answer: A
Rationale: Oligohydramnios, or low amniotic fluid, is indicated by the reduced volume, requiring close monitoring.
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 medication would the nurse include in the discharge teaching for a patient after an egg retrieval?
- A. birth control pills
- B. follitropin
- C. estrogen supplementation
- D. ganirelix acetate
Correct Answer: C
Rationale: Estrogen supplementation is often prescribed after egg retrieval to support the endometrial lining for embryo transfer.