A nurse is assisting in collecting data for a gestational age assessment on a newborn. Which of the following should the nurse check during a neuromuscular assessment? (Select all that apply.)

Choice A rationale: Auscultating fetal heart tones in the right upper quadrant is not appropriate based on the information provided by Leopold maneuvers, which indicates the fetal back is on the right side of the mother's abdomen, and the fetal head is in the fundal portion of the uterus.
Choice B rationale: During Leopold maneuvers, the nurse palpated a round, firm, movable part in the fundal portion of the uterus. This finding corresponds to the fetal head, which is typically located at the top of the uterus (fundus). Additionally, the nurse palpated a long, smooth surface on the mother's right side. This finding indicates the fetal back, which typically lies along the right side of the mother's abdomen, suggesting that the fetus's back is positioned anteriorly (toward the mother's front). The location of the fetal heart is typically best heard over the back of the fetus. Therefore, the nurse should auscultate the fetal heart tones in the maternal quadrant corresponding to the back of the fetus, which is the left lower quadrant.
Choice C rationale: The information from Leopold maneuvers does not indicate the fetal back is in the right lower quadrant. The nurse should not auscultate fetal heart tones in this area.
Choice D rationale: Auscultating fetal heart tones in the left upper quadrant is not appropriate based on the information provided by Leopold maneuvers, which indicates the fetal head is in the fundal portion of the uterus and the fetal back is on the right side of the mother's abdomen. The fetal heart is usually best heard over the back of the fetus, which is not in the left upper quadrant.

Choice A rationale: The Mongolian spot is a bluish-gray birthmark that is often seen on the lower back or buttocks of newborns with darker skin tones. It is not related to the swelling described in the scenario.
Choice B rationale: Caput succedaneum is a common condition in newborns delivered by vacuum extraction. It is characterized by swelling of the soft tissues of the scalp that crosses the suture lines. The swelling occurs due to pressure from the vacuum extractor during delivery and is caused by fluid accumulation between the scalp and the skull. Caput succedaneum is typically a benign and self-resolving condition that does not require treatment.
Choice C rationale: Cephalhematoma is a collection of blood between the periosteum and the skull bone. Unlike caput succedaneum, it does not cross the suture lines and can take weeks to months to resolve.
Choice D rationale: Erythema toxicum is a common skin rash in newborns characterized by red or pink spots with a yellow or white bump in the center. It is not related to the swelling described in the scenario.