What is the primary purpose of cryopreservation in fertility treatments?

Correct Answer: A

Rationale: The correct answer is A because cryopreservation allows embryos, eggs, or sperm to be stored for future use, preserving fertility options for patients undergoing fertility treatments. This helps in cases like preserving fertility before undergoing treatments that may affect fertility or for those who wish to postpone childbearing. Choice B is incorrect because cryopreservation doesn't directly improve natural conception rates. Choice C is incorrect as cryopreservation doesn't reduce the need for fertility medications but rather provides a method to store reproductive materials. Choice D is incorrect as cryopreservation doesn't eliminate genetic abnormalities in embryos; it preserves them for potential future use.

Correct Answer: B

Rationale: The correct answer is B, as pelvic ultrasound allows visualization of uterine and ovarian structures. This is essential in assessing conditions like fibroids, polyps, ovarian cysts, and structural abnormalities that may affect fertility. Ovarian reserve evaluation (A) involves separate tests like AMH levels. Hormone levels (C) are typically measured through blood tests. Genetic abnormalities in embryos (D) are usually identified through preimplantation genetic testing, not pelvic ultrasound.

Correct Answer: B

Rationale: The correct answer is B because frequent ultrasounds are used to monitor the growth and development of ovarian follicles during ovarian stimulation. This is essential to ensure proper timing for ovulation induction or egg retrieval. Ultrasounds do not monitor embryo development after transfer (choice A), confirm natural ovulation (choice C), or visualize uterine contractions (choice D) in this context.

Correct Answer: B

Rationale: The correct answer is B. Monitoring hormone levels during ovulation induction is essential to ensure that the hormones stay within safe and effective ranges for successful egg maturation. By closely monitoring hormone levels, healthcare providers can adjust medication dosages as needed to optimize the chances of successful ovulation. This helps to minimize the risk of overstimulation or understimulation of the ovaries, which can impact the quality of the eggs produced. A: Predicting embryo quality before fertilization is not the primary purpose of monitoring hormone levels during ovulation induction. C: Confirming pregnancy before the cycle ends is not the purpose of hormone level monitoring during ovulation induction. D: Determining if the uterine lining is ready for implantation is important, but this is typically assessed through other methods such as ultrasound rather than hormone level monitoring.

Correct Answer: B

Rationale: The correct answer is B. Estrogen plays a crucial role in thickening and vascularizing the endometrium to prepare for potential implantation of a fertilized egg. Estrogen does not prevent ovulation (choice A), as it actually promotes ovulation. It also does not directly stimulate egg release (choice C), as that is primarily controlled by luteinizing hormone. Estrogen indirectly influences progesterone production by triggering ovulation, but it does not directly increase progesterone production (choice D).