Why does a blender need to be sanitized while a refrigerator does not? The refrigerator can be used to keep food at constant temperature.
The blender comes in direct contact with food, unlike the refrigerator.
The blender has many parts while a refrigerator is basically just a box.
The refrigerator is made of metal or plastic, so bacteria will not grow on it.

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?