A client with severe preeclampsia is receiving magnesium sulfate. The nurse notes the following vital signs: blood pressure 146/90 mm Hg at 1220 and 141/86 mm Hg at 1230. What is the most appropriate action for the nurse to take?

Discontinue the magnesium sulfate infusion as the blood pressure has decreased.

Decrease the dosage of the magnesium sulfate.

Continue to monitor the client's vital signs as the blood pressure is trending in the right direction.

Increase the frequency of blood pressure checks.