Correct Answer: D

Rationale: The correct answer is D: Prolactin. Prolactin levels are not typically elevated in patients with PCOS. Elevated LH and androgens are commonly seen in PCOS patients. While estrogen levels can vary in PCOS, they are not consistently low or high in all cases.

Correct Answer: B

Rationale: In incomplete abortions, the products of conception are retained. In a complete abortion, all the products of conception are expelled from the uterus. Threatened abortion refers to a situation where there is vaginal bleeding but the cervix remains closed, and it does not necessarily involve retention of products of conception. Mixed abortion is not a recognized medical term related to retained products of conception.

Correct Answer: C

Rationale: Amniocentesis is a prenatal test that involves examining chromosomes in the amniotic fluid to detect genetic abnormalities. Therefore, the correct answer is 'Chromosomes.' The other choices, such as 'Fingers,' 'DNA,' and 'Proteins,' do not accurately represent what is analyzed during an amniocentesis procedure and are unrelated to the genetic information obtained through this test.

Correct Answer: D

Rationale: The lower border is used to differentiate between an abdominal mass and a pelvic mass during clinical examination. The lower border of the mass provides important information about its location and origin. The size (Choice A) alone may not always clearly distinguish between abdominal and pelvic masses. The site (Choice B) and margins (Choice C) are also important factors, but they are not as specific in differentiating between abdominal and pelvic masses as the lower border.

Correct Answer: A

Rationale: The correct answer is A: By equipping them with life skills. Life skills empower adolescents and youths to make informed decisions and take control of their health. Providing health education (choice B) and encouraging them to become peer educators (choice C) are beneficial but may not directly empower them as much as acquiring life skills. Giving loans to start businesses (choice D) is not directly related to empowering adolescents in the context of health and development.