<span>C. metric ruler since millimeters are metric</span>
<span>The finding this indicates is most likely peritonitis. Rebound tenderness refers to pain felt when pressure is removed instead of applied, such as taking your hand away from holding a wound or perceived injury such as chest pain. In this situation there is usually an infection and it can be quite deadly. The pain is caused by seepage or a tear somewhere in the intestines.</span>
