My Hepa scan indicated an ejection faction of 42%, which was considered the lower limits of normal. I read that 35% to 75% is the normal range. I have mild pain on the right rib cage near the sternum after eating (about 3-4 times per week). The results also listed delayed biliary to the small intestine. All of this is suggestive of gallbladder dyskinesia Question: I am scheduled for ultrasound in a few weeks...is this study used for confirmation?