A patient with severe pain and nausea who feels like he or she is about to vomit

A patient writhing and moaning from abdominal pain after abdominal surgery

A patient who received morphine and has a pulse of 62 beats/min, respirations 10 breaths/min, and blood pressure 118/60 mmHg

A patient lying very still in bed who reports no pain but is pale with warm, dry skin