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 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.
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.
An infertile couple learns that the female is unable to produce viable eggs. The male partner suggests the use of a surrogate as a means of having a child. The female states, 'I don’t want your baby with another woman!' The nurse is aware of which psychosocial issue with this couple?
- A. The male blames the female for the infertility
- B. The female is jealous of the surrogate’s fertility
- C. The male needs to have a child with his genes
- D. The female is experiencing self-esteem issues
Correct Answer: D
Rationale: The female is experiencing self-esteem issues due to infertility and the suggestion of a surrogate. The other choices either misinterpret the scenario or are less likely explanations for her reaction.
Many parents-to-be have questions about multiple births. Maternity nurses should be able to tell them that:
- A. Twinning and other multiple births are increasing because of the use of fertility drugs and delayed childbearing.
- B. Dizygotic twins (two fertilized ova) have the potential to be conjoined twins.
- C. Fraternal twins are same gender, usually male.
- D. Identical twins are more common in white families.
Correct Answer: A
Rationale: Twinning and other multiple births are increasing due to fertility drugs and delayed childbearing.
The placenta allows exchange of oxygen, nutrients, and waste products between the mother and fetus by:
- A. Contact between maternal blood and fetal capillaries within the chorionic villi.
- B. Interaction of maternal and fetal pH levels within the endometrial vessels.
- C. A mixture of maternal and fetal blood within the intervillous spaces.
- D. Passive diffusion of maternal carbon dioxide and oxygen into the fetal capillaries.
Correct Answer: A
Rationale: Fetal capillaries within the chorionic villi are bathed with oxygen-rich and nutrient-rich maternal blood within the intervillous spaces.