The nurse suspects autonomic dysreflexia in the patient with a spinal cord injury at the level of C-7. After checking vital signs what are the priority nursing interventions?

C Place in Semi-Fowler's position and establish IV access B Elevate the head of the bed and apply a cool compress to the forehead D Establish IV access, apply 2 liters of nasal oxygen, and contact the health care provider A Elevate the head of the bed, loosen clothing, and check the urinary catheter for obstruction