Best test to diagnose gastroesophageal reflux disease and quantify acid output is
|D||24 hr pH monitoring|
Esophageal Acid Testing:
This testing is called “gold standard” for diagnosing GERD. The quantity of acid in an individual suffering from GERD is compared to a normal person's level of acid. The Esophagus contains acid most of the time in patients of GERD; this can be determined by a test called the 24-hour esophageal ph test
In upper gastrointestinal endoscopy, or Esophago-Gastro-Duodenoscopy (EGD), an optical system for visualization is swallowed and the lining of esophagus, stomach and duodenum examined as it progresses down the gastrointestinal tract (GI tract). Inflamed lining of esophagus (Esophagitis), ulcers, possible cancers, and complications due to GERD such as strictures and Barrett’s esophagus are diagnosed with the help of endoscopy.
Esophageal Motility Testing:
Motility testing of the esophagus determines the working of muscles of the esophagus by passing a catheter through a nostril down the throat into the esophagus
QAcid Perfusion Test or Bernstein Test:
This test is used to determine if the chest pain caused is due to acid reflux.
Esophagogram is a contrast radio-graph of the esophagus. Gastrografin Contrast Esophagogram is often used to confirm the diagnosis and to locate the position of esophagial perforation.