A patient is admitted to the Labor & Delivery unit at 39 weeks.

She is 5/60/-2. After several hours she is at 5/70/-2. What can be given to help augment her labor?

Choice A rationale
Folic acid does not reduce the risk of preeclampsia. Instead, it is crucial for preventing neural tube defects in the developing fetus during early pregnancy.
Choice B rationale
While folic acid can improve overall nutrition, its primary importance during pregnancy is in preventing neural tube defects by aiding in proper neural development.
Choice C rationale
Folic acid does not prevent patent ductus arteriosus. It is specifically recommended to prevent neural tube defects like spina bifida by supporting proper neural tube closure.
Choice D rationale
Folic acid is essential for preventing neural tube defects such as spina bifida. It helps ensure the proper closure of the neural tube during early fetal development, reducing the risk of these defects.

Choice A rationale
Although the placenta acts as a partial barrier, it does not keep out all harmful substances, allowing some to cross and affect fetal development.
Choice B rationale
One of the placenta's early functions is producing hormones like human chorionic gonadotropin (hCG), estrogen, and progesterone, making it act as an endocrine gland.
Choice C rationale
The placenta does not thin out; it remains robust and increases in thickness to support the growing fetus and facilitate nutrient and gas exchange.
Choice D rationale
While optimal blood circulation through the placenta is crucial, this statement lacks detail on the specific structural and functional aspects of the placenta.