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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Fetal circulation includes 3 shunts. Match each shunt to its physiologic action. Foramen ovale
- A. Connects the pulmonary artery and the aorta, bypassing the lungs.
- B. Connects the right and left atria.
- C. Connects the right and left ventricles.
- D. Allows the umbilical vein to bypass the liver to flow into the inferior vena cava.
Correct Answer: B
Rationale: Foramen ovale connects the right and left atria.
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.
In which structure does fertilization usually occur?
- A. the ovary
- B. the uterus
- C. the fallopian tube
- D. the vagina
Correct Answer: C
Rationale: Fertilization typically occurs in the fallopian tube, where the sperm meets the ovum.
Along with gas exchange and nutrient transfer, the placenta produces many hormones necessary for normal pregnancy, including which of the following? (Select all that apply.)
- A. Insulin
- B. Estrogen
- C. Progesterone
- D. Testosterone
Correct Answer: B
Rationale: - Estrogen: The placenta secretes estrogen during pregnancy, which plays a crucial role in maintaining the pregnancy and preparing the body for childbirth. Estrogen helps regulate the menstrual cycle, supports fetal development, and stimulates the growth of the uterus and breasts.
The nurse is counseling a patient regarding pregnancy. The patient lost her first two pregnancies in the second trimester of gestation for undetermined reasons. Which initial advice does the nurse provide for this patient?
- A. Consider adoption.
- B. Seek genetic studies.
- C. Plan for fertility tests.
- D. Attend grief counseling.
Correct Answer: B
Rationale: Following two spontaneous abortions, the nurse initially suggests genetic studies to identify any genetic factors causing the loss of previous pregnancies.