What is the function of progesterone support after embryo transfer in IVF?

Correct Answer: B

Rationale: The correct answer is B: To maintain the uterine lining and support early pregnancy. After embryo transfer in IVF, progesterone support is crucial to ensure the uterine lining remains thick and supportive for the implantation and early development of the embryo. Progesterone helps create a hospitable environment in the uterus for the embryo to implant and grow. It also supports the continued development of the pregnancy until the placenta can take over hormone production. Choice A is incorrect because progesterone support after embryo transfer is not aimed at stimulating egg growth during the next cycle. Choice C is incorrect as progesterone support does not trigger ovulation during the current cycle; ovulation would have already been induced prior to embryo transfer. Choice D is incorrect as preventing hormonal imbalances during stimulation is not the primary function of progesterone support after embryo transfer.

Correct Answer: B

Rationale: The correct answer is B: To promote the growth and maturation of ovarian follicles. FSH plays a crucial role in the menstrual cycle by stimulating the development of ovarian follicles in the ovary. As FSH levels rise, it triggers the growth of multiple follicles, one of which will eventually mature and release an egg during ovulation. Choice A is incorrect because it is actually luteinizing hormone (LH) that triggers the release of a mature egg. Choice C is incorrect as thickening of the uterine lining is primarily influenced by estrogen and progesterone. Choice D is incorrect because progesterone production is mainly regulated by luteinizing hormone (LH) and not FSH.

Correct Answer: B

Rationale: The correct answer is B: To suppress natural hormone production and control the cycle. GnRH agonists work by initially stimulating the release of certain hormones that eventually lead to the suppression of natural hormone production. This helps to control the menstrual cycle and prevent premature ovulation. Other choices are incorrect because A is typically achieved through other medications, C is more related to other fertility treatments like IVF, and D is not a primary function of GnRH agonists.

Correct Answer: B

Rationale: The correct answer is B: To identify genetic abnormalities in embryos before implantation. PGT is used to screen embryos for genetic disorders before implantation in IVF to prevent the transmission of genetic diseases to the offspring. By identifying abnormalities, only healthy embryos are selected for transfer, increasing the chances of a successful pregnancy. Other choices are incorrect as PGT does not directly impact the number of embryos available (A), uterine receptivity (C), or egg production (D) during IVF.

Correct Answer: C

Rationale: The correct answer is C because buying a small desk for a laptop computer is unrelated to preconception education. This statement does not demonstrate any understanding or action related to preparing for a healthy pregnancy. Choices A, B, and D all show a proactive approach towards preconception health by addressing smoking cessation, prenatal vitamin intake with folic acid, and avoiding harmful chemicals, respectively.