You're starting to notice that it's not only obvious things -- like too much spicy food or coffee -- that trigger painful heartburn symptoms. Now you're getting heartburn in the middle of the afternoon, just working at your desk, or sitting on the sofa at home. Sometimes you wake up at night with pain in the back of your throat and that awful taste of yesterday's dinner. You groan: not again. Sit up in bed and wonder: Is this more serious than simple heartburn?
A few people have GERD that doesn't respond to treatment. Or they may have other concerning symptoms, such as weight loss, difficulty swallowing, anemia, or black stools. If you're one of them, you may need any of the following tests.
Diagnosing Acid Reflux With a Barium Swallow Radiograph
Your doctor may decide to use a special X-ray procedure -- the barium swallow radiograph -- to rule out any structural problems in your esophagus. In this painless acid reflux test, you will be asked to swallow a solution of barium. The barium enables doctors to take X-rays of your esophagus.
Barium swallow isn't a surefire method of diagnosing GERD. Only one out of every three people with GERD has esophageal changes that are visible on X-rays.