A provider has ordered several diagnostic procedures for a couple with suspected infertility. Which diagnostic procedure is useful for determining if ovulation has occurred?

Correct Answer: B

Rationale: The correct answer is B: Progesterone level. Progesterone is the hormone secreted after ovulation, indicating that ovulation has occurred. Monitoring progesterone levels can confirm ovulation. FSH (A) and estrogen (C) levels reflect the ovarian function but do not directly confirm ovulation. Vaginal ultrasound (D) can visualize the ovaries but does not definitively confirm ovulation.

Correct Answer: C

Rationale: The correct answer is C: Smoking and alcohol consumption. Smoking and alcohol can negatively impact male fertility by affecting sperm quality and quantity. Smoking can lead to DNA damage in sperm, while alcohol can disrupt hormone levels. High testosterone levels (A) actually do not commonly cause reduced fertility. Frequent use of lubricants (B) may hinder sperm movement, but it's not a common cause. Daily exercise (D) can improve overall health and fertility.

Correct Answer: B

Rationale: The correct answer is B because folic acid plays a crucial role in reducing the risk of neural tube defects in the fetus during early pregnancy. Folic acid is essential for proper development of the neural tube, which forms the baby's brain and spinal cord. This is why it is particularly important during preconception care and in the early stages of pregnancy. Choice A is incorrect because folic acid is not specifically for preventing iron deficiency anemia in pregnancy. Choice C is incorrect as folic acid is important throughout pregnancy, not just in the first trimester. Choice D is incorrect because folic acid does not directly enhance the absorption of calcium and vitamin D.

Correct Answer: B

Rationale: The correct answer is B because fertility declines with age, leading to increased risk of complications such as chromosomal abnormalities and miscarriages. This is important to emphasize during preconception counseling. Choice A is incorrect as advanced maternal age does impact pregnancy outcomes. Choice C is incorrect because both maternal and paternal age can affect pregnancy success. Choice D is incorrect as advanced maternal age actually increases the need for additional prenatal care due to higher risk factors.

Correct Answer: A

Rationale: The correct answer is A because ovarian reserve testing evaluates the quantity and quality of a woman's remaining eggs, helping to determine her fertility potential. This includes tests like AMH levels, antral follicle count, and FSH levels. Choice B is incorrect as it pertains to assessing uterine abnormalities, not ovarian reserve. Choice C is incorrect as it refers to monitoring hormone levels during pregnancy, not fertility evaluation. Choice D is incorrect as ovarian reserve testing does not predict success of natural conception within a specific timeframe.