A 29-year-old woman presents seizing with a blood pressure of 162/112. What is the next best step in her care?

In this clinical scenario, the patient is experiencing seizures alongside severely elevated blood pressure, which raises the suspicion for a hypertensive emergency or possibly eclampsia, especially in a woman of reproductive age. The best immediate step is to control the seizures, as they pose a significant risk to the patient and could lead to further complications if not managed promptly.

Administering magnesium sulfate is a well-recognized treatment for seizure control, particularly in cases related to eclampsia. This medication not only helps in terminating the seizures but also serves a protective role against potential future seizures. Furthermore, it is a critical intervention that needs to be prioritized in this acute setting, as it directly addresses the life-threatening nature of the patient's condition.

While drawing blood for lab tests, notifying the labor floor, and performing a CT scan may all be necessary steps, they should generally follow the immediate management of the seizures. The control of seizures takes precedence due to the immediate threat posed to the patient's well-being. After stabilizing the patient, the healthcare team can then proceed with other appropriate evaluations and interventions.