A 12-year-old child is being admitted to the pediatric unit. What is the priority nursing action based on these the data below? Vital signs: T: 104F (40C) P: 89, R: 30, B/P: 80/42 Nurse's notes: Difficult to arouse, c/o headache, emesis x2, exhibiting nuchal rigidity, slight petechiae noted on distal extremities, lumbar puncture completed with results of elevated WBCs in CSF, decreased glucose in CSF.