How are electrical impulses from the ear sent to the brain? A.
Mechanical vibrations from the tympanic membrane directly send electrical impulses to the brain.
B.
Vibrations disturb the fluid within the cochlea that directly sends electrical impulses to the brain.
C.
Vibrations disturb hair cells within the organ of corti that directly send electrical impulses to the brain.
D.
Mechanical vibrations from the ossicles directly send electrical impulses to the brain.

You are assessing an 86-year-old postoperative patient who has an unexpressive, stoic demeanor. when you enter the room, the patient is curled into the fetal position and your assessment reveals that his vital signs are elevated and he is diaphoretic. you ask the patient what his pain level is on a 0-to-10 scale that you explained to the patient prior to surgery. the patient indicates a pain level of “three or so.” you review your pain-management orders and find that all medications are ordered prn. how would you treat this patient's pain?