what are the signs of peritonitis?
Tenderness + tachycardia Reflex guarding Absent or reduced bowel sounds Pyrexia Percussion pain Extremely unwell Distant palpation - local tenderness
what is the triad of peritonitis?
tenderness
reflex guarding
absent or reduced bowel sounds
3 causes of free air under diaphragm
perf gastric or duodenal ulcer
gastric carcinoma