A nurse is caring for a pregnant client in labor in a health care facility.
The nurse knows that which sign indicates that the patient is no longer in the first stage of labor?

The correct answer is choice C.

Choice A rationale:

While Vitamin E is important for many bodily functions, it is not the primary supplement recommended to prevent neural tube defects.

Choice B rationale:

Calcium is crucial for bone health, but it does not play a direct role in preventing neural tube defects.

Choice C rationale:

Folic acid is recommended for all people capable of becoming pregnant to consume 400 micrograms (mcg) daily to prevent neural tube defects (NTDs)3.

Choice D rationale:

Iron is important for preventing anemia, especially during pregnancy, but it does not prevent neural tube defects.

The correct answer is choice B.

Choice A rationale:

Vitamin K is given to newborns to prevent bleeding disorders, not eye conditions.

Choice B rationale:

Erythromycin ophthalmic ointment is commonly used for prophylaxis of neonatal conjunctivitis (pink eye) caused by Neisseria gonorrhoeae and Chlamydia trachomatis.

Choice C rationale:

Gentamicin ophthalmic ointment can be used to treat bacterial infections of the eye, but it is not typically used for prophylaxis of neonatal eye conditions.

Choice D rationale:

Silver nitrate solution was once used for prophylaxis of neonatal eye conditions, but it is no longer commonly used due to the risk of chemical conjunctivitis.