The nurse gives a patient in the emergency department (ED) who has nausea and vomiting ...

The nurse gives a patient in the emergency department (ED) who has nausea and vomiting prochlorperazine (Compazine) IM, as ordered by the physician. The patient is discharged 2 hours after the administration of this medication.
 
  The nurse asks the friend of the patient to drive him home. This action is necessary for which reason?
  a.
  The patient is too nervous after this ED visit.
  b.
  The patient does drive a car, but he is too elderly.
  c.
  The medication causes hyperactivity of the brain.
  d.
  The patient should not operate a motor vehicle after receiving this medication.