The Nurse Notes That a Patient with a Head Injury

The nurse notes that a patient with a head injury has a widening pulse pressure.Which action should the nurse take at this time?

A) Give an extra dose of diuretic.
B) Lay the bed flat and check pupil response.
C) Raise the head of the bed and notify the registered nurse (RN) .
D) None; this is an expected finding after a head injury.