Sudden onset of severe intense, steady epigasric
   pain with radiation to sides, back, or right
   shoulder
 Past h/o burning, gnawing pain worse with
   empty stomach
 Physical findings
   - epigastric tenderness
   - rebound tenderness
   - abdominal muscle rigidity
 Diagnostic studies
   - upright or lateral decubitis X-ray shows
      air under the diaphragm or peritoneal
      cavity
REFER - SURGICAL EMERGENCY