Three out of every 10 people experience heartburn on occasion, so it can be somewhat arbitrary to decide when heartburn should be called acid reflux disease.
Also known as gastroesophageal reflux disease (GERD), acid reflux disease is a chronic irritation of the lining of a person's esophagus by stomach acid. Usually, it's just annoying. GERD can, however, have serious consequences, including esophagitis and Barrett's esophagus. Barrett's esophagus is a condition that increases the likelihood of esophageal cancer.
A physical exam for hiatal hernia is similar to that for heartburn, with two additions: X-rays may be ordered to show the hernia, and if anemia is a concern, a blood sample may be taken to check your red blood cell count.
A hiatal hernia can be diagnosed with a specialized X-ray study that allows visualization of the esophagus and stomach (barium swallow) or with endoscopy (a test that allows the doctor to view the hernia directly). An esophageal manometry test (pressure study) may also be performed...
People with acid reflux disease often have some or all of the following symptoms:
Pain when or difficulty swallowing
Bad breath and/or bad taste in the mouth
How Is Acid Reflux Diagnosed?
If you experience classic symptoms of acid reflux disease -- chronic heartburn and regurgitation -- without any troublesome complications, it may be relatively easy for your doctor to make an acid reflux diagnosis.
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.