On occasion I have had right upper quadrant pain after eating but it has always gone away without intervention. Last week during the night I awoke and it felt as is my stomach, esophagus and throat were on fire. I went to my Dr. who prescribed Nexium for what she thought was GERD. She also drew some labs. I have taken the Nexium since Sat which has helped a little along with diet modification. Today they called and my lipase was elevated at only 70. She said I should have a Gall Bladder UltraSound done and if that is normal then to procede with a HydaScan. Due to previous health issues recently with other medical bills, are these tests medically necessary?