A patient diagnosed with preeclampsia is admitted to the hospital and prescribed magnesium sulfate therapy.
What is the purpose of administering magnesium sulfate to this patient?

The correct answer is choice C.Adolescents need more protein than older pregnant women because they are still growing themselves and need to support the growth of the baby and the placenta.Protein can be found in meat, poultry, fish, eggs, dairy products, beans, nuts, and fortified cereals.

Choice A is wrong because adolescents need more supplemental iron than older women, not less.This is because they have lower iron stores due to rapid growth and menstruation.Iron deficiency can cause anemia and increase the risk of infections and bleeding.Iron can be found in meat, poultry, fish, eggs, dairy products, beans, nuts, and fortified cereals.

Choice B is wrong because adolescents need more carbohydrates than older women, not less.Carbohydrates provide energy for the mother and the baby and spare protein for other functions.Carbohydrates can be found in grains, fruits, vegetables, and dairy products.

Choice D is wrong because adolescents need the same amount of vitamin C as older pregnant women, which is 85 milligrams per day.Vitamin C helps with wound healing, collagen formation, iron absorption, and immune function.Vitamin C can be found in citrus fruits, tomatoes, peppers, broccoli, potatoes, and fortified juices.

The correct answer is choice B. Position the patient in a left lateral position.This is because late fetal decelerations indicate uteroplacental insufficiency, which means that the placenta is not delivering enough oxygen to the fetus.By positioning the patient on her left side, the blood flow to the placenta and the fetus is improved.

Choice A is wrong because notifying the health care provider is not the first action that the nurse should take.The nurse should first intervene to correct the cause of fetal distress and then inform the provider.

Choice C is wrong because increasing the patient’s intravenous rate may not help with uteroplacental insufficiency.It may also cause fluid overload or pulmonary edema in the patient.

Choice D is wrong because providing the patient with oxygen via a face mask is not the most effective way to increase fetal oxygenation.Oxygen therapy may be used as an adjunct to other interventions, but it is not sufficient by itself.