Mike is a 46-year-old who presents with a complaint of heartburn for 3 months. He describes the pain as burning and it is located in the...

Mike is a 46-year-old who presents with a complaint of "heartburn" for 3 months. He describes the pain as burning and it is located in the epigastric area. The pain improves after he takes an antacid or drinks milk. He has been taking either over-the-counter (OTC) famotidine or ranitidine off and on for the past 2 months and he still has recurring epigastric pain. He has lost 6 lb since his last visit.