A patient is walking up and down the hall and visiting with other patients. He is laughing and joking. He approaches the nurse's station, asks for his pain shot, and reports that his pain is 6 on a scale of 0 to 10. Based on McCaffrey's definition of pain, which assumptions by the nurse is most likely correct?
The patient is having pain at a level of 6 on a scale of 0 to 10.
Rationale: Pain is whatever the patient says it is, whenever the patient says it is.