RN Maternal Nursing OB Newborn 2023 2024 Exam -Nurselytic

Correct Answer: A

Rationale: The correct answer is A:
To transport oxygen and nutrients from the mother to the fetus. The umbilical cord serves as a connection between the placenta and the fetus, allowing for the transfer of essential nutrients and oxygen from the mother's bloodstream to the fetus. This is crucial for the growth and development of the fetus during pregnancy.
Choice B is incorrect because waste products are removed through the placenta, not the umbilical cord.
Choice C is incorrect as regulating fetal temperature is primarily done by the mother's body temperature.
Choice D is incorrect because the umbilical cord does not regulate fetal temperature or remove waste products.

Correct Answer: D

Rationale: Frequent breastfeeding stimulates milk production. Manually expressing milk does not decrease supply, and the baby should alternate breasts during feedings.

Correct Answer: D

Rationale: Frequent breastfeeding stimulates milk production, ensuring an adequate milk supply for the infant.

Correct Answer: A

Rationale: The HBsAg test is the recommended method for screening for hepatitis B during pregnancy.

Correct Answer: C

Rationale: Newborn genetic screening should be performed after the baby is 24 hours old to ensure accurate results. Blood is typically drawn from the heel, not the inner elbow, and no water is given prior to the test.