How can maternal smoking during pregnancy affect fetal development?

Correct Answer: D

Rationale: Maternal smoking during pregnancy can affect fetal development in multiple ways. Smoking can cause low birth weight by restricting oxygen and nutrients to the fetus, leading to growth issues. It can also increase the risk of preterm birth due to the harmful chemicals in cigarette smoke. Furthermore, smoking can affect lung development in the fetus, leading to respiratory issues. Therefore, the correct answer is D - All of the above, as maternal smoking can have a comprehensive impact on fetal development, including low birth weight, preterm birth, and lung development issues.

Correct Answer: D

Rationale: The correct answer is D: All of the above. High-risk pregnancies are associated with various complications, including preterm birth, gestational diabetes, and preeclampsia. Preterm birth can lead to developmental issues for the baby. Gestational diabetes affects the mother's and baby's health. Preeclampsia can result in high blood pressure and organ damage. Choosing D as the correct answer encompasses all these complications, highlighting the comprehensive nature of risks in high-risk pregnancies. Choices A, B, and C alone do not cover all the potential complications, making them individually incorrect.

Correct Answer: B

Rationale: Breech presentation refers to the bottom or feet-first position of the baby in the uterus. This is the correct answer (B) because it accurately defines breech presentation. Choice A (head-first presentation) is incorrect as it describes the typical vertex presentation. Choices C (oblique lie) and D (transverse lie) are also incorrect as they refer to other abnormal fetal positions that are different from breech presentation.

Correct Answer: A

Rationale: The correct answer is A because immediate cesarean is crucial to prevent further complications and ensure the safety of the mother and baby. Monitoring for signs of shock is essential to detect any deterioration in the mother's condition. Fluid resuscitation helps stabilize the mother's hemodynamic status. Option B is incorrect as observation alone may delay necessary interventions. Option C is partially correct as immediate cesarean is necessary but does not address monitoring for shock and fluid resuscitation. Option D is incorrect as continuous monitoring alone is insufficient to manage incomplete uterine rupture.

Correct Answer: B

Rationale: The correct answer is B: Hyperbaric oxygen. Hyperbaric oxygen therapy involves breathing pure oxygen in a pressurized room, which can help reduce gas cysts in the gastrointestinal tract by increasing oxygen delivery to tissues. This promotes healing and reduces symptoms associated with pneumatosis. A: Several days of oxygen by face mask is not as effective as hyperbaric oxygen therapy in treating pneumatosis, as it does not provide the same level of pressurized oxygen delivery to tissues. C: Surgical resection may be considered in severe cases of pneumatosis where conservative treatments have failed, but it is not the first-line treatment option. D: Treatment of underlying disease is important in managing pneumatosis, but it may not directly address the gas cysts themselves. Hyperbaric oxygen therapy specifically targets the gas cysts to alleviate symptoms.