A patient undergoing IVF asks about blastocyst transfer. What is the nurse's best explanation?

Correct Answer: B

Rationale: The correct answer is B because blastocyst transfer typically occurs on day 5 or 6 after fertilization when the embryo has reached a more advanced stage of development. This increases the likelihood of successful implantation in the uterus. Choice A is incorrect because it does not align with the typical timeline of blastocyst transfer. Choice C is incorrect as pregnancy success is not guaranteed with blastocyst transfer, though it may improve the chances. Choice D is incorrect as blastocyst transfer is a standard procedure in IVF and not limited to cases where natural conception has failed.

Correct Answer: B

Rationale: The correct answer is B: To visualize and treat abnormalities within the uterine cavity. A hysteroscopy is a minimally invasive procedure that allows direct visualization of the inside of the uterus using a thin, lighted tube. In infertility evaluation, it helps identify and treat issues such as polyps, fibroids, adhesions, or other abnormalities that may be interfering with implantation or causing recurrent miscarriages. It is crucial for improving fertility outcomes. Choice A is incorrect because a hysteroscopy does not measure hormone levels in the uterus. Choice C is incorrect because monitoring egg development is typically done through ultrasound imaging, not hysteroscopy. Choice D is incorrect because assessing ovarian reserve is usually done through blood tests and ultrasound evaluation of the ovaries, not hysteroscopy.

Correct Answer: A

Rationale: The correct answer is A because transferring multiple embryos during IVF increases the likelihood of multiple pregnancies, which can lead to complications for both the mother and babies, such as preterm birth and low birth weight. This is a well-documented risk in IVF procedures. Choice B is incorrect because overcrowding in the uterus does not reduce implantation rates; rather, it can increase the chances of successful implantation of the embryos. Choice C is incorrect as transferring multiple embryos does not guarantee improved success rates and can actually increase the risks associated with multiple pregnancies. Choice D is incorrect because while there is a slightly increased risk of genetic abnormalities in pregnancies resulting from IVF, the primary concern related to transferring multiple embryos is the increased risk of multiple pregnancies.

Correct Answer: A

Rationale: The correct answer is A: Using ovulation predictor kits to detect the LH surge. This method is recommended because it directly detects the hormone surge that triggers ovulation, providing a reliable indication of the most fertile period for conception. Tracking cervical mucus changes only after ovulation (B) may not accurately predict the fertile window. Measuring basal body temperature in the evening (C) is less accurate than measuring it in the morning. Testing progesterone levels daily (D) is not a practical or necessary method for ovulation tracking.

Correct Answer: A

Rationale: The correct answer is A: Age is the primary factor influencing egg quality. As a tutor, I will explain this by stating that the quality of a woman's eggs declines with age due to factors like genetic abnormalities and decreased mitochondrial function. This decline can affect fertility and increase the risk of chromosomal abnormalities in offspring. For the incorrect choices: B: Diet can impact egg quality by providing essential nutrients, so this choice is incorrect. C: Hormonal treatments may help with fertility but do not guarantee improvement in egg quality, making this choice incorrect. D: Exercise can contribute to overall health but is not the only way to enhance egg quality, making this choice incorrect. In summary, age is a crucial factor affecting egg quality, while diet, hormonal treatments, and exercise play roles but are not primary influencers.