A client with pregnancy-induced hypertension is to receive magnesium sulfate to run at 3 grams per hour with normal saline to maintain the total I.V. rate at 125 mL/hour. The nurse giving end of shift report stated the client's blood pressures have been elevated during the night. The oncoming nurse checked the client and found magnesium sulfate running at 2 grams per hour. Identify the nursing actions to be taken from first to last.