A nurse is admitting a client who has a diagnosis of preterm labor. The nurse anticipates an order by the provider for which of the following medications?

Choice A reason: Calcium carbonate is not the compound that the nurse should have readily available, as it is an antacid that neutralizes stomach acid and relieves heartburn. Calcium carbonate is not used to treat severe preeclampsia or magnesium sulfate toxicity, which are the conditions that the client may have.

Choice B reason: Potassium chloride is not the compound that the nurse should have readily available, as it is an electrolyte supplement that replenishes potassium levels and prevents hypokalemia. Potassium chloride is not used to treat severe preeclampsia or magnesium sulfate toxicity, which are the conditions that the client may have.

Choice C reason: Ferrous sulfate is not the compound that the nurse should have readily available, as it is an iron supplement that prevents or treats iron deficiency anemia. Ferrous sulfate is not used to treat severe preeclampsia or magnesium sulfate toxicity, which are the conditions that the client may have.

Choice D reason: Calcium gluconate is the compound that the nurse should have readily available, as it is an antidote that reverses the effects of magnesium sulfate and restores calcium levels and neuromuscular function. Calcium gluconate is used to treat severe preeclampsia or magnesium sulfate toxicity, which are the conditions that the client may have.

Choice A reason: Hypoglycemia is a low blood sugar level that can affect newborns, especially those who are premature, small for gestational age, or have diabetic mothers. However, hypoglycemia does not explain the high FHR, the low Apgar scores, or the pale and tachypneic appearance of the newborn.

Choice B reason: Phrenic nerve injury is a rare complication of cesarean section that can cause diaphragmatic paralysis and respiratory distress in the newborn. However, phrenic nerve injury usually affects only one side of the chest, and does not cause high FHR, low Apgar scores, or pallor.

Choice C reason: Sepsis is a serious infection that can affect newborns, especially those who are exposed to prolonged rupture of membranes, as in this case. Sepsis can cause high FHR, low Apgar scores, pale and tachypneic appearance, and other signs of shock and organ failure.

Choice D reason: Meconium aspiration syndrome is a condition where the newborn inhales meconium-stained amniotic fluid into the lungs, causing respiratory distress. However, meconium aspiration syndrome usually occurs in term or post-term infants, and is associated with low FHR, not high FHR. Meconium aspiration syndrome also causes cyanosis, not pallor.