The Nurse Is Questioning If a Patient Is Experiencing Pain

The nurse is questioning if a patient is experiencing pain.Which myth should the nurse recall when determining this patient's pain level?

A) A patient can sleep and still experience severe pain.
B) A patient who is laughing and talking is not in pain.
C) Respiratory depression can occur in patients receiving opioids.
D) Oral pain medication can be as effective as injected medication.