When should magnesium sulfate infusion be stopped immediately?

Magnesium sulfate infusion is commonly used to prevent and treat seizures in conditions such as preeclampsia and eclampsia. One critical aspect of monitoring a patient receiving this therapy is their respiratory status.

When the respiratory rate drops below 12 breaths per minute, it can indicate respiratory depression, which is a serious side effect of magnesium sulfate. This can lead to inadequate oxygenation and potential respiratory failure, making it essential to stop the infusion immediately to prevent further complications.

In contrast, while headaches and nausea can occur during magnesium sulfate therapy, they are not immediate indications for stopping the infusion. Signs of decreased fetal movement could suggest other issues unrelated to magnesium sulfate and would require further assessment rather than immediate cessation of treatment. Increased urination is typically expected with magnesium sulfate, as it has a diuretic effect and does not necessitate stopping the infusion.

Overall, close monitoring for signs of respiratory distress is crucial, and a respiratory rate below 12 is a significant concern that warrants stopping the magnesium sulfate infusion promptly.