A 45-year-old patient who is alert and oriented has a blood pressure of 98/66 mm Hg, radial pulse of 76 beats/min (irregular), and respirations of 18 breaths/min (regular). The best nursing intervention is to:

check the patient's record to determine his baseline blood pressure.

notify the charge nurse of the hypotension.

check medications that might be the cause of the irregularity.

notify the doctor of the bradycardia.