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During an IVF cycle, a patient asks about embryo transfer timing. What is the nurse's best explanation?
- A. Embryos are always transferred on the day of fertilization.
- B. Embryo transfer typically occurs 3 to 5 days after fertilization.
- C. Timing depends on uterine size, not embryo development.
- D. Transfer is done after pregnancy is confirmed.
Correct Answer: B
Rationale: The correct answer is B: Embryo transfer typically occurs 3 to 5 days after fertilization. This timing aligns with the development of embryos to the blastocyst stage, which is crucial for successful implantation in the uterus. By waiting until this stage, the chances of a successful pregnancy are increased. Choice A is incorrect because embryos do not reach the blastocyst stage on the day of fertilization. Choice C is incorrect as embryo development stage is a key factor in determining the timing of transfer. Choice D is incorrect as waiting until pregnancy is confirmed would delay the transfer unnecessarily.
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During a consultation, a patient asks about the role of estrogen in the menstrual cycle. What is the nurse's best explanation?
- A. Estrogen triggers the release of mature eggs from the ovaries.
- B. Estrogen supports the growth of the uterine lining for implantation.
- C. Estrogen prevents ovulation during pregnancy.
- D. Estrogen regulates the production of progesterone.
Correct Answer: B
Rationale: The correct answer is B: Estrogen supports the growth of the uterine lining for implantation. Estrogen plays a key role in the menstrual cycle by stimulating the thickening of the endometrium (uterine lining) to prepare for potential implantation of a fertilized egg. This process occurs during the proliferative phase of the menstrual cycle. Choice A is incorrect because ovulation is primarily triggered by luteinizing hormone (LH) surge, not estrogen. Choice C is incorrect as estrogen levels decrease during pregnancy, allowing ovulation to occur. Choice D is incorrect because while estrogen and progesterone work together in the menstrual cycle, estrogen does not directly regulate progesterone production.
A 10-week gravid states that her sister's son has been diagnosed with an X-linked recessive disease, Duchenne muscular dystrophy. She questions the nurse about the disease. Which of the following responses is appropriate for the nurse to make?
- A. Because Duchenne muscular dystrophy is inherited through the woman
- B. it is advisable for you to see a genetic counselor.
- C. Duchenne muscular dystrophy usually occurs as a spontaneous mutation. It is very unlikely that your fetus is affected.
- D. Your child could acquire Duchenne muscular dystrophy only if both you and your husband carried the gene. You need to check your husband's family history.
Correct Answer: A
Rationale: Duchenne muscular dystrophy is X-linked recessive, meaning the mother must be a carrier for the child to be affected.
Which of the following client responses indicates that the nurse's teaching about care following chorionic villus sampling (CVS) has been successful?
- A. If the baby stops moving
- B. the woman should immediately go to the hospital.
- C. The woman should take oral terbutaline every 2 hours for the next day.
- D. If the woman starts to bleed or to contract
Correct Answer: C
Rationale: Bleeding or contractions after CVS warrant medical attention.
A couple has been told that the male partner, who is healthy, is producing no sperm 'because he has cystic fibrosis.' Which of the following explanations is accurate in relation to this statement?
- A. Since the man is healthy
- B. he could not possibly have cystic fibrosis.
- C. Men with cystic fibrosis often have no epididymis.
- D. The expressivity of cystic fibrosis is variable.
Correct Answer: B
Rationale: Men with cystic fibrosis frequently have congenital absence of the vas deferens, leading to azoospermia.
A woman is seeking genetic counseling during her pregnancy. She has a strong family history of diabetes mellitus. She wishes to have an amniocentesis to determine whether she is carrying a baby who will 'develop diabetes.' Which of the following replies would be most appropriate for the nurse to make?
- A. Doctors don't do amniocenteses to detect diabetes.
- B. Diabetes cannot be diagnosed by looking at the genes.
- C. Although diabetes does have a genetic component
- D. diet and exercise also determine whether or not someone is diabetic.
Correct Answer: C
Rationale: Diabetes involves genetic and environmental factors.