You’re performing a head-to-toe assessment on a patient with a spinal cord injury at T6. The patient is restless, sweaty, and extremely flushed. You assess the patient’s blood pressure and heart rate. The patient’s blood pressure is 140/98 and heart rate is 52. You look at the patient's chart and find that their baseline blood pressure is 106/76 and heart rate is 72. What action should the nurse take FIRST?