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: To call for an immediate magnesium sulfate level is not the immediate action that the nurse should take, as it is a diagnostic test that requires a blood sample and a laboratory analysis, which can take time and delay the treatment. The nurse should first stop the infusion and notify the provider, as the client is showing signs of magnesium sulfate toxicity, which is a life-threatening condition that can cause respiratory depression, cardiac arrest, or coma.

Choice B reason: To prepare to administer hydralazine is not the immediate action that the nurse should take, as it is a pharmacological intervention that requires a prescription and an assessment of the blood pressure and the fetal status. Hydralazine is an antihypertensive drug that lowers the blood pressure and prevents the complications of severe preeclampsia, such as eclampsia, stroke, or organ damage. However, the client's blood pressure is not very high and is not the main problem at the moment.

Choice C reason: To discontinue the magnesium sulfate infusion is the immediate action that the nurse should take, as it is the first and most important intervention that can reverse the effects of magnesium sulfate and restore the neuromuscular function and the respiratory rate. Magnesium sulfate is a drug that prevents seizures and lowers the blood pressure in clients with severe preeclampsia, but it can also cause toxicity if the dose is too high or the infusion is too fast.

Choice D reason: To administer oxygen is not the immediate action that the nurse should take, as it is a supportive intervention that improves the oxygen delivery to the tissues and organs, but does not address the underlying cause of the respiratory depression, which is the magnesium sulfate toxicity. The nurse should administer oxygen only after stopping the infusion and assessing the oxygen saturation and the respiratory status.

Choice A reason: "I know I am at increased risk to develop type 2 diabetes." is a correct statement, because it indicates that the client understands the long-term implications of gestational diabetes. The client should be aware that gestational diabetes increases the risk of developing type 2 diabetes later in life, and that she should have regular screening and follow-up.

Choice B reason: "I will take my glyburide daily with breakfast." is a correct statement, because it indicates that the client understands the medication regimen for gestational diabetes. The client should take glyburide, a sulfonylurea that lowers blood glucose levels, as prescribed by the provider, and monitor her blood glucose levels before and after meals.

Choice C reason: "I will reduce my exercise schedule to 3 days a week." is an incorrect statement, because it indicates that the client does not understand the importance of physical activity for gestational diabetes. The client should exercise at least 30 minutes a day, 5 days a week, unless contraindicated by the provider. Exercise can help improve insulin sensitivity, lower blood glucose levels, and prevent excessive weight gain.

Choice D reason: "I should limit my carbohydrates to 50% of caloric intake." is a correct statement, because it indicates that the client understands the dietary guidelines for gestational diabetes. The client should consume a balanced diet that provides adequate but not excessive amounts of carbohydrates, protein, and fat, and that is consistent in carbohydrate intake throughout the day.