The Apgar score is based on which 5 parameters?.

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.

The correct answer is choice A.

Choice A rationale:

Evaluating the firmness of the uterus (fundus) is the first action the nurse should take when a client’s blood pressure drops postpartum. A soft or “boggy” uterus can indicate uterine atony, a leading cause of postpartum hemorrhage, which can lead to hypotension.

Choice B rationale:

Obtaining a type and crossmatch is important if the client needs a blood transfusion, but it is not the first action the nurse should take.

Choice C rationale:

Administering oxytocin infusion can help contract the uterus and control bleeding, but the nurse should first assess the uterus.

Choice D rationale:

Initiating oxygen therapy can help if the client is hypoxic, but the nurse should first assess the uterus.