Which of the following is/are true regarding water? (Select all that apply.) It is the most abundant nutrient in the body
It serves as a lubricant for the body
It interacts with other nutrients
It helps transport nutrients through the body
It is the most important nutrient
It accounts for less than 40% of the human body
It helps the body regulate and maintain body temperature

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?