Which of the following is highly associated with preterm babies?

Correct Answer: C

Rationale: The correct answer is C: Multiple gestation. Preterm birth is more common in multiple gestation pregnancies due to the increased strain on the mother's uterus and cervix. This can lead to early labor and delivery. Social habits (choice A) and genetic factors (choice B) may play a role in preterm birth but are not highly associated. Chronic conditions (choice D) can also contribute to preterm birth, but multiple gestation is a stronger predictor.

Correct Answer: B

Rationale: The correct answer is B: Myelomeningocele. McEwen sign refers to the characteristic scalloping of the frontal bones due to pressure from the expanding brain in individuals with myelomeningocele. This sign is specific to myelomeningocele and is not associated with hydrocephalus (A), microcephaly (C), or encephalocele (D), which have different clinical manifestations and imaging findings. Myelomeningocele is a neural tube defect where the spinal cord and its coverings protrude through an opening in the spine, leading to neurological deficits and associated signs like McEwen sign.

Correct Answer: B

Rationale: Complete uterine rupture involves a full-thickness disruption of all uterine layers, including the serosa, myometrium, and endometrium. This leads to a complete separation of the uterine wall, potentially resulting in severe bleeding and fetal distress. Choice A is incorrect as it only involves the outermost layer of the uterus. Choice C is incorrect as uterine contractions are usually present during uterine rupture. Choice D is incorrect as the correct definition of complete uterine rupture involves the entire uterine layers being affected.

Correct Answer: C

Rationale: The correct answer is C: 4 hours. This is based on the definition of prolonged second stage in nulliparous women, which is labor lasting more than 4 hours. This duration is considered abnormal and may lead to increased risk of maternal and fetal complications. Choice A (1 hour) is too short and does not meet the criteria for prolonged second stage. Choice B (2 hours) is also insufficient based on the established timeframe. Choice D (8 hours) exceeds the duration for prolonged second stage, indicating a more advanced stage of labor. Therefore, the most appropriate and accurate timeframe for prolonged second stage in nulliparous women is 4 hours.

Correct Answer: B

Rationale: The correct answer is B: FALSE. In mild preeclampsia, the mother may have symptoms such as mild hypertension, proteinuria, and swelling. This contradicts the statement that the mother has no complaints. Choice A is incorrect because it inaccurately states that the mother has no complaints. Choices C and D are not applicable as they do not provide any relevant information to address the question.