Let´s suppose you are a general practitioner and a patient suffering from epigastric discomfort and episodic nausea enters your office. His abdomen is soft during palpation without any signs of peritoneal irritation. During deep palpation, the patient´s abdomen is more sensitive in the right upper quadrant. During auscultation, you hear normal peristalsis.
Let´s perform an abdominal ultrasound exam: